Cost Accounting Quiz: Joint Costs Vs Further Processing
20 questions · exam conditions
0:00
Joint Costs Vs Further ProcessingQuestion 1 of 20

WoodProducts Inc. processes logs through a joint sawing operation that produces lumber, wood chips, and sawdust. The company uses different allocation methods for different purposes: physical units method for tax reporting, sales value at split-off for financial reporting, and net realizable value for internal management reports. The production manager wants to use the internal management reports (net realizable value method) to evaluate which products should be processed further because these reports show the 'true economic cost' of each product.

Which aspect of management accounting theory best explains why the production manager's approach is conceptually flawed?

Using different allocation methods for different purposes creates inconsistent cost information that undermines the reliability of any subsequent analysis
The net realizable value method produces forward-looking cost allocations, but further processing decisions require historical cost information for accurate analysis
No joint cost allocation method produces costs that are relevant for further processing decisions, regardless of the method's sophistication or intended purpose
The internal management reports should use standard costs rather than actual costs to eliminate the impact of monthly cost fluctuations on processing decisions
← Back to quizzes

Cost Accounting Quiz

Cost Accounting Quiz: Joint Costs Vs Further Processing

Practice Joint Costs Vs Further Processing in Cost Accounting with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Joint Costs Vs Further Processing, giving you a quick way to practice the rules, question types, and explanations that matter most for Cost Accounting.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

WoodProducts Inc. processes logs through a joint sawing operation that produces lumber, wood chips, and sawdust. The company uses different allocation methods for different purposes: physical units method for tax reporting, sales value at split-off for financial reporting, and net realizable value for internal management reports. The production manager wants to use the internal management reports (net realizable value method) to evaluate which products should be processed further because these reports show the 'true economic cost' of each product.

Which aspect of management accounting theory best explains why the production manager's approach is conceptually flawed?

  1. Using different allocation methods for different purposes creates inconsistent cost information that undermines the reliability of any subsequent analysis
  2. The net realizable value method produces forward-looking cost allocations, but further processing decisions require historical cost information for accurate analysis
  3. No joint cost allocation method produces costs that are relevant for further processing decisions, regardless of the method's sophistication or intended purpose (correct answer)
  4. The internal management reports should use standard costs rather than actual costs to eliminate the impact of monthly cost fluctuations on processing decisions
Explanation: The production manager incorrectly believes that a more sophisticated allocation method produces 'relevant' costs for decision-making. However, all joint cost allocation methods, regardless of their sophistication or intended purpose, result in arbitrary assignments of sunk costs that are irrelevant for further processing decisions. The correct approach is incremental analysis. Choice A addresses consistency but misses the fundamental irrelevance issue. Choice B incorrectly characterizes the NRV method and suggests historical costs are relevant. Choice D focuses on standard vs. actual costs, which doesn't address the core conceptual problem.

Question 2

A company produces Products A and B from a joint process. A manager is deciding whether to sell Product A at the split-off point or process it further into Product A+. The controller provides an analysis showing that Product A+ will have a higher gross margin than Product A, after allocating joint costs based on sales value at split-off. Why is the controller's analysis potentially misleading for this specific decision?

  1. The sales value at split-off method is less accurate than the net realizable value method for this type of decision.
  2. The analysis ignores the opportunity cost of not selling Product A at the split-off point, which is a critical component.
  3. Gross margin is an accounting measure and should not be used for internal decision-making; contribution margin should be used instead.
  4. The analysis includes allocated joint costs, which are sunk costs with respect to the further processing decision. (correct answer)
Explanation: The core principle for a sell-or-process-further decision is to compare the incremental revenue from further processing with the incremental (separable) costs. Joint costs incurred before the split-off point are sunk costs and are irrelevant to this decision. The controller's analysis is misleading because it includes these sunk costs, and the resulting gross margin figure is not the correct basis for the decision.

Question 3

A food processing company allocates $200,000 in joint costs to its two products, Alpha and Beta. Initially, using the physical units method, Alpha is allocated $120,000. Under this allocation, Alpha appears to be unprofitable. Management is considering changing to the sales value at split-off method, which would allocate only $80,000 to Alpha, making it appear profitable. What is the most direct consequence of this accounting change on the company's operational decisions?

  1. The decision of whether to further process Alpha should be re-evaluated, as it now appears profitable.
  2. The company should increase production of Alpha relative to Beta because its reported profitability has improved.
  3. The change will affect the reported inventory values for Alpha and Beta but should have no impact on the economic decision of whether to sell Alpha at split-off or process it further. (correct answer)
  4. The total profit reported for the company will increase because a more appropriate allocation method is being used to reflect the products' earning power.
Explanation: Joint cost allocation is necessary for inventory valuation and external reporting. However, the method of allocation is arbitrary and does not change the underlying economics of production. Allocated joint costs are sunk costs and are irrelevant to decisions such as whether to sell at split-off or process further. Therefore, changing the allocation method affects reported product profitability but not the correct operational decision.

Question 4

A lumber mill produces high-grade lumber (HGL) and wood chips (WC) from a joint process of milling logs. The joint cost is $50 per log. The costs are allocated based on weight. HGL can be sold immediately or processed into finished paneling. The analysis for one log is as follows:

  • HGL: Sales price at split-off = $80. Allocated joint cost = $40.
  • WC: Sales price at split-off = $10. Allocated joint cost = $10.
  • Further processing HGL to paneling: Separable cost = $50. Final sales price = $125.

A manager argues against further processing, stating: "The final paneling price is $125, but the total cost is $40 (allocated joint) + $50 (separable) = $90, giving a profit of $35. Selling HGL as-is gives a profit of $80 - $40 = $40. The $40 profit is higher, so we should not process further." What is the fundamental flaw in the manager's reasoning?

  1. The manager ignored the revenue from the wood chips when evaluating the profitability of the high-grade lumber.
  2. The manager incorrectly treated the allocated joint cost as a relevant cost for the further processing decision. (correct answer)
  3. The manager used the weight-based allocation method, which understates the cost of the more valuable product.
  4. The manager's calculation of profit for selling HGL as-is is incorrect because it should include all costs up to the point of sale.
Explanation: The manager's analysis is flawed because it includes the 40allocatedjointcostinthecomparison.Thiscostissunkatthepointthedecisionismade.Thecorrectanalysiscomparestheincrementalrevenue(40 allocated joint cost in the comparison. This cost is sunk at the point the decision is made. The correct analysis compares the incremental revenue (125 - $80 = 45)totheincrementalcost(45) to the incremental cost (50). Since incremental costs exceed incremental revenues, the decision not to process further is correct, but the manager's reasoning for reaching that conclusion is conceptually wrong.

Question 5

A company's income statement, segmented by product line, shows that Product C, a joint product, has a negative segment margin. This negative margin is calculated after deducting both its separable costs and a significant allocation of joint process costs. The Vice President of Production argues that Product C should be discontinued. Why might this conclusion be premature?

  1. The joint cost allocation method may be flawed; using the NRV method instead of the physical units method could make the segment margin positive.
  2. Discontinuing Product C would increase the joint cost allocation to the remaining products, potentially making them appear unprofitable as well.
  3. The separable costs for Product C may have been overestimated and should be audited before a decision is made.
  4. The decision should be based on whether Product C's revenue at its final point of sale is greater than its own separable costs; the allocated joint cost is not relevant. (correct answer)
Explanation: The VP's conclusion is premature because it is based on a reported loss that includes an allocation of sunk joint costs. The correct analysis for deciding whether to continue producing Product C (assuming the joint process will run anyway) is to see if it has a positive contribution margin after the split-off point. That is, do its revenues cover its own separable costs? If they do, the product is contributing to covering the joint costs and overall profit.

Question 6

A mining company extracts ore that yields both Copper and Zinc after a joint milling process. Currently, Copper is sold at the split-off point, while Zinc is processed further into a refined Zinc oxide. A new environmental regulation will soon impose a significant tax on the further processing of Zinc. How does this new regulation affect the company's analysis?

  1. It will force a change in the joint cost allocation method to assign more cost to Copper to maintain Zinc's reported profitability.
  2. It makes the sales value of Copper at the split-off point more important for the decision of whether to continue the entire milling operation.
  3. The total joint cost of the milling process will now be considered a relevant cost in the decision to further process Zinc.
  4. The new tax should be treated as an additional incremental cost, which will reduce the financial benefit of further processing Zinc. (correct answer)
Explanation: The decision to further process Zinc depends on comparing incremental revenues to incremental costs. A tax imposed specifically on the further processing activity is a direct, incremental cost of choosing that option. It should be added to the other separable costs in the analysis. This will make the further processing option less attractive and could change the decision from 'process further' to 'sell at split-off'.

Question 7

A company can sell Product G at split-off for $100. Further processing yields Product G+, which sells for $150. Separable costs are $40. The allocated joint cost for Product G is $70. A junior accountant makes two statements: (1) "We should process further because the incremental revenue of $50 exceeds the incremental cost of $40." (2) "This will result in a final reported profit of $150 - $70 - $40 = $40 per unit." Which of these statements accurately reflects sound cost accounting principles for decision-making?

  1. Both statement (1) and statement (2) are accurate for decision-making purposes.
  2. Statement (1) is accurate for decision-making, but statement (2) is not because it includes a sunk cost in evaluating the decision's outcome. (correct answer)
  3. Statement (2) is accurate for decision-making, but statement (1) is not because it ignores the opportunity cost of the initial sales value.
  4. Neither statement (1) nor statement (2) is accurate for decision-making purposes.
Explanation: Statement (1) correctly applies incremental analysis. The incremental revenue is the difference between the final sales price (150)andthesalespriceatsplit−off(150) and the sales price at split-off (100), which is $50. This is correctly compared to the incremental cost of $40. Since $50 > $40, the decision to process further is correct. Statement (2) calculates a product profit for reporting purposes but is not the figure to be used for the decision. It incorrectly includes the sunk joint cost of $70.

Question 8

An external consultant reviewed a company's joint production facility. The consultant's primary recommendation was: "The company should immediately stop any further processing on joint products that show a net loss after all costs, including allocated joint costs, have been assigned." Which cost accounting principle does this recommendation violate?

  1. The consistency principle, as it may lead to frequent changes in production based on allocation methods.
  2. The materiality principle, as allocated joint costs are often immaterial to the final product cost.
  3. The full-cost principle, which requires all production costs to be assigned to products for inventory valuation.
  4. The relevance principle, as it fails to distinguish between sunk costs and incremental costs when making a forward-looking decision. (correct answer)
Explanation: The relevance principle states that for decision-making, only future costs and revenues that differ among alternatives are relevant. The consultant's advice incorrectly includes allocated joint costs, which are sunk costs, in a forward-looking decision about further processing. This violates the relevance principle by treating irrelevant information as if it were relevant, potentially leading to poor decisions.

Question 9

A company must allocate joint costs to its joint products for external financial reporting. This is primarily done to comply with the matching principle. How does this accounting requirement create a potential conflict with sound internal decision-making regarding whether to process a joint product further?

  1. By requiring the use of sales value at split-off, it over-allocates costs to the most profitable products, making them seem less attractive for further investment.
  2. The allocation process is often arbitrary and complex, consuming management time that could be better spent on strategic analysis.
  3. The resulting per-unit costs, which include an allocated portion of sunk joint costs, may be mistakenly used by managers as if they were incremental costs in sell-or-process-further decisions. (correct answer)
  4. It forces the company to carry inventory at a cost that may exceed its net realizable value, leading to write-downs that distort performance.
Explanation: The main conflict arises because financial accounting requires a full costing approach for inventory, which involves allocating joint costs. However, for internal decisions like sell-or-process-further, only incremental revenues and costs are relevant. Managers who are not well-versed in this distinction might incorrectly use the full product cost (including allocated joint costs) from accounting reports to make their decision, leading to suboptimal outcomes.

Question 10

A company's process creates one high-value main product (Product M) and a low-value byproduct (Product B). The company accounts for the byproduct by deducting its net realizable value (NRV) from the joint cost pool before allocating the remainder to Product M. The company is now considering a new process to refine Product B into a more valuable material. How does the initial accounting treatment of Product B affect this further processing decision?

  1. It is critical, as the reduced cost assigned to Product M must be compared to the benefits of refining Product B.
  2. It is irrelevant; the decision should be based solely on comparing the incremental revenue from refining Product B with the incremental costs of the refining process. (correct answer)
  3. It is relevant because the NRV used in the accounting treatment sets a benchmark for the required profitability of further processing.
  4. It makes the decision impossible without also re-evaluating the costs to be allocated to Product M under the new scenario.
Explanation: The decision to further process a product—whether it's a joint product or a byproduct—relies on the same principle: compare incremental revenues to incremental costs. The accounting method used to handle the byproduct's value (deducting NRV from joint costs) is for inventory valuation purposes and is irrelevant to the forward-looking economic decision. The NRV at the split-off point is relevant as an opportunity cost, but the accounting method itself is not.

Question 11

PetroChem Inc. produces two chemicals, A1 and B2, in a joint process. A1 can be processed further into a specialized product, A1-Plus. The incremental revenue from this further processing is $50,000, and the incremental (separable) costs are $35,000. However, after allocating joint costs using the net realizable value (NRV) method, the financial statements show that A1-Plus would have a net loss of $5,000. What is the correct course of action and justification?

  1. Do not process further, because the company's overall reported profit would decrease by $5,000.
  2. Change the joint cost allocation method to one where A1-Plus shows a profit, and then proceed with further processing.
  3. Process further, because this action is expected to increase the company's overall profit by $15,000. (correct answer)
  4. Do not process further, because the reported loss indicates that the resources used for the separable costs are not generating a sufficient return.
Explanation: The decision to process further should be based on incremental analysis. The incremental revenue (50,000)isgreaterthantheincrementalcost(50,000) is greater than the incremental cost (35,000), resulting in a $15,000 increase in overall company profit. The reported net loss of $5,000 is an artifact of the joint cost allocation and is irrelevant to the decision. The allocated joint cost is a sunk cost.

Question 12

A company's process yields products Alpha and Beta. Alpha can be sold immediately, but Beta has no market at the split-off point and must be processed further to be saleable. How does the lack of a market for Beta at split-off affect the analysis?

  1. The separable costs to process Beta become part of the joint costs because they are mandatory to realize any value from the joint process.
  2. All joint costs should be allocated to Alpha, since Beta has a net realizable value of zero at split-off.
  3. The 'sell-or-process-further' decision for Beta is moot; the relevant decision is whether the final sales revenue from processed Beta exceeds its separable processing costs. (correct answer)
  4. The company should compare the final sales value of processed Beta to the total joint costs allocated to it to decide if the processing is worthwhile.
Explanation: If there is no market at split-off, there is no 'sell' option. The decision is no longer 'sell or process further,' but rather 'process further or scrap for zero.' Therefore, the analysis simplifies to comparing the final sales revenue of the processed product to the separable costs required to get it to the saleable state. If final revenue > separable costs, it should be processed.

Question 13

A company's joint process has total joint costs of $100,000 and produces products X and Y. The decision to shut down the entire joint process is being evaluated separately from a decision to further process product Y into Y-Prime. Which statement correctly distinguishes the role of the $100,000 joint cost in these two decisions?

  1. The joint cost is relevant for the further processing decision but irrelevant for the shutdown decision.
  2. The allocation of the joint cost is relevant for the shutdown decision, while the total joint cost is relevant for the further processing decision.
  3. The joint cost is relevant for both decisions because it represents a significant cash outflow for the company.
  4. The joint cost is a sunk cost for the further processing decision, but it is a potentially avoidable cost for the shutdown decision. (correct answer)
Explanation: For the decision to further process Y into Y-Prime, the $100,000 has already been spent or committed and cannot be changed by this specific decision; it is a sunk cost. For the decision to shut down the entire operation, the $100,000 joint cost is potentially avoidable in the future and is therefore relevant to that decision.

Question 14

A chemical company produces two products, Resin and Solvent, from a common input. The company is considering a proposal to further refine the Solvent into a premium-grade Super-Solvent. Which of the following items is essential for the decision to further process the Solvent, yet irrelevant for the purpose of allocating the joint production costs to Resin and Solvent for inventory valuation?

  1. The market price of Resin at the split-off point.
  2. The total joint costs incurred before the split-off point.
  3. The separable costs required to convert Solvent into Super-Solvent. (correct answer)
  4. The number of gallons of Solvent produced in the joint process.
Explanation: The separable costs to convert Solvent into Super-Solvent are incremental costs incurred after the split-off point. They are essential for the further processing decision but are, by definition, not part of the joint costs that need to be allocated. Joint costs (B) and data used for allocation like the price of other products (A) or physical quantities (D) are irrelevant to the decision to process Solvent further.

Question 15

In a sell-or-process-further decision, allocated joint costs are considered irrelevant. However, a manager might incorrectly focus on them. Which of the following scenarios would most likely cause a manager to mistakenly believe that the joint cost allocation method is a critical factor in the decision to further process a product?

  1. The separable processing costs are very high relative to the incremental revenue from further processing.
  2. There is no market for the joint product at the split-off point, requiring it to be processed further to be sold.
  3. The company has a large amount of unsold inventory of the joint product from the previous period.
  4. The manager's performance bonus is heavily based on the reported gross margin percentage of the individual products they manage. (correct answer)
Explanation: If a manager's compensation is tied to the reported profitability of their specific product line, they will have a strong incentive to care about how costs are allocated to that product line. A different allocation method could change the reported gross margin and thus their bonus, even if it doesn't change the economically optimal decision for the company. This creates a behavioral reason for the manager to focus on an irrelevant factor.

Question 16

A company produces joint products A and B. It has the option to further process Product B into B+. The incremental analysis shows that processing B into B+ would increase profit by $2 per unit. However, the further processing requires 30 minutes on a machine that is currently operating at full capacity. The next best use of this machine time is to produce an unrelated product that generates a contribution margin of $5 per 30 minutes. What is the correct decision regarding Product B?

  1. Process B into B+, because the incremental profit of $2 is positive and opportunity costs are not cash flows.
  2. The decision cannot be made without knowing the joint costs allocated to Product B to assess its full profitability.
  3. Do not process B into B+, because the opportunity cost of the machine time (5)isgreaterthantheincrementalprofitfromfurtherprocessing(5) is greater than the incremental profit from further processing (2). (correct answer)
  4. Process B into B+, but only if the joint costs allocated to it are less than the final sales price of B+.
Explanation: When a resource is constrained, the decision must consider the opportunity cost of using that resource. In this case, processing B into B+ generates a benefit of $2 but consumes machine time that could have generated a benefit of $5. The net effect of choosing to process B further is a loss of 3(3 (2 benefit - $5 opportunity cost). Therefore, the company should not process B further and should use the machine time for the alternative product.

Question 17

ChemCorp processes crude oil through a joint production process that yields three products at the split-off point: Product A, Product B, and Product C. The total joint costs for the month were $450,000. At split-off, Product A can be sold for $8 per unit, Product B for $12 per unit, and Product C for $6 per unit. Alternatively, any of these products can be processed further: Product A can be converted to Premium A at an additional cost of $3 per unit and sold for $10 per unit; Product B can be converted to Premium B at an additional cost of $5 per unit and sold for $18 per unit; Product C can be converted to Premium C at an additional cost of $4 per unit and sold for $9 per unit.

When ChemCorp's management decides whether to process Product B further into Premium B, which of the following statements best describes the conceptual relationship between joint cost allocation and this decision?

  1. The allocated joint costs to Product B are relevant to the decision because they represent the true cost basis for determining profitability of further processing
  2. The allocated joint costs to Product B are irrelevant to the decision because they are sunk costs that will not change regardless of the further processing choice (correct answer)
  3. The joint cost allocation method selected will determine whether further processing is profitable, so management should choose the allocation method that supports the desired decision
  4. The allocated joint costs should be compared proportionally to the additional processing costs to ensure the incremental investment maintains the same cost structure
Explanation: Joint costs are sunk costs that have already been incurred up to the split-off point and will not change regardless of whether further processing occurs. The decision to process further should be based solely on incremental analysis: comparing the additional revenue from further processing ($18 - $12 = 6perunit)totheadditionalcosts(6 per unit) to the additional costs (5 per unit). Choice A is wrong because allocated joint costs are not relevant for future decisions. Choice C is wrong because the allocation method should not drive operating decisions. Choice D is wrong because it suggests an inappropriate comparison of sunk costs to incremental costs.

Question 18

A company uses the net realizable value method to allocate joint costs among its joint products. The controller argues that since this method allocates more joint costs to products with higher selling prices, it provides better information for deciding which products should be processed further. Which aspect of cost accounting theory makes this argument conceptually flawed?

  1. The net realizable value method understates the profitability of higher-value products, making further processing decisions appear less attractive than they actually are
  2. Joint cost allocation methods are designed for inventory valuation and external reporting, not for internal decision-making about future processing alternatives (correct answer)
  3. The allocation creates artificial cost differences that may not reflect the actual resource consumption patterns of the individual joint products in the process
  4. The method requires estimates of final selling prices that may be inaccurate, leading to poor allocation accuracy for subsequent processing decisions
Explanation: The fundamental conceptual error is confusing the purpose of joint cost allocation (which is primarily for inventory valuation and external reporting) with decision-making relevance. Joint cost allocations, regardless of method, do not provide relevant information for further processing decisions because the allocated amounts are arbitrary assignments of sunk costs. Choice A incorrectly describes the NRV method's impact. Choice C addresses resource consumption but misses the key point about decision relevance. Choice D focuses on estimation accuracy rather than the fundamental conceptual issue.

Question 19

FoodProcessors Inc. operates a joint production process that simultaneously produces Protein Powder, Fish Oil, and Bone Meal from fish processing. The company has historically used the physical units method to allocate the $600,000 monthly joint costs. Management is considering changing to the net realizable value method because they believe it will provide better information for pricing decisions and further processing evaluations.

From a conceptual standpoint, what is the most significant limitation of management's reasoning for changing allocation methods?

  1. The net realizable value method requires market price estimates that may be volatile and unreliable for consistent cost allocation over time
  2. The change in allocation methods will require extensive system modifications and staff training that may outweigh any informational benefits
  3. The physical units method is more objective and verifiable, making it superior for both external reporting and internal decision-making purposes
  4. Different allocation methods serve different purposes, but neither method provides relevant cost information for operational decisions about further processing (correct answer)
Explanation: When you encounter questions about joint cost allocation methods, the key insight is understanding what these allocation methods can and cannot do for managerial decisions. Joint cost allocation is primarily an accounting necessity for inventory valuation and external reporting, but it has fundamental limitations for operational decision-making. The correct answer is D because it identifies the core conceptual flaw in management's reasoning. Joint costs are sunk costs that have already been incurred in the joint production process. Whether you allocate these costs using physical units, net realizable value, or any other method, the allocation doesn't change the underlying economics of further processing decisions. These decisions should be based on incremental revenues versus incremental costs beyond the split-off point, not on how joint costs are allocated. Answer A focuses on the practical reliability concerns of NRV estimates, which is a valid operational issue but doesn't address the fundamental conceptual limitation of using allocated joint costs for decision-making. Answer B emphasizes implementation costs, which is a practical consideration rather than a conceptual limitation about the usefulness of the information itself. Answer C incorrectly suggests that objectivity makes the physical units method superior for decisions, but objective allocation of irrelevant costs doesn't improve decision-making quality. Remember this principle: joint cost allocation methods are accounting tools for cost assignment, not decision-making tools. When evaluating further processing decisions, focus on incremental analysis beyond the split-off point, regardless of how joint costs are allocated.

Question 20

An operations manager argues that her company should abandon joint cost allocation entirely and instead track only the incremental costs and revenues associated with further processing decisions. She believes this approach would eliminate the confusion between cost allocation and decision-making. A controller objects, stating that eliminating joint cost allocation would make it impossible to determine product profitability and would violate external reporting requirements. How should this disagreement be resolved from a conceptual standpoint?

  1. The operations manager is correct; joint cost allocation serves no useful purpose and creates confusion that impairs decision-making effectiveness
  2. The controller is correct; product profitability cannot be determined without proper allocation of all costs, including joint costs, to individual products
  3. Both perspectives have merit; joint cost allocation serves important financial reporting purposes but should not be used for operational decisions about further processing (correct answer)
  4. The disagreement can be resolved by using activity-based costing to allocate joint costs more accurately, making the allocations relevant for both reporting and decision-making
Explanation: This situation illustrates the important distinction between the purposes served by joint cost allocation versus decision-making needs. Joint cost allocation is necessary for inventory valuation, external financial reporting, and certain regulatory requirements, but these allocated costs are not relevant for further processing decisions. Both functions can coexist when their different purposes are clearly understood. Choice A incorrectly dismisses legitimate needs for cost allocation. Choice B incorrectly suggests that allocated costs are relevant for operational decisions. Choice D incorrectly suggests that a more sophisticated allocation method can make joint costs relevant for decision-making.