This question tests CCSS.RI.6.2: determining a central idea of a text and how it is conveyed through particular details, then providing a summary distinct from personal opinions or judgments, requiring students to identify main points, trace how they're developed, and synthesize objectively. The CENTRAL IDEA is the main point or message of the text—what the text is mostly about, the overarching concept that ties all details together. It's more specific than the topic (which is just one or two words like 'photosynthesis' or 'printing press') but broader than one supporting detail. The central idea is usually stated in one sentence capturing what the author wants readers to understand (e.g., 'Photosynthesis is essential for life on Earth' not just 'photosynthesis' or 'plants produce oxygen'). An OBJECTIVE SUMMARY restates the central idea plus the most important supporting details in your own words, staying factual without adding personal opinions ('I think'), judgments ('Unfortunately,' 'This is good/bad'), or recommendations ('People should'). A good summary is: (1) Concise (shorter than original), (2) Includes central idea clearly, (3) Adds 1-3 key supporting details that explain or develop the central idea, (4) Uses own words (not copied), (5) Stays objective and factual, (6) Maintains original meaning. In this passage, the CENTRAL IDEA is: 'The printing press revolutionized communication in the 15th century' (stated in sentence 1). This central idea is CONVEYED THROUGH particular details: the passage contrasts the situation before (books copied by hand, costly and uncommon) with after (Gutenberg's invention allowed quick and cheap production), then explains the revolutionary effects (more people could read and access education, new ideas spread faster across Europe). These details show how communication was transformed. Choice B is correct because it provides an objective summary that includes the central idea (Gutenberg's printing press changed communication) and key supporting details explaining HOW (making books faster and cheaper to produce) and the IMPACT (spread education and ideas). This summary stays completely objective—no opinions like 'greatest' or judgments like 'terrible'—and uses neutral, factual language. It's concise, captures the essential transformation described in the passage, uses own words to synthesize the information, and maintains the original meaning without adding personal reactions or recommendations. Choice A is incorrect because it includes subjective judgment ('greatest invention ever') and the sweeping claim 'for everyone,' making it non-objective. An objective summary must avoid superlatives and personal evaluations. Choice C contains multiple problems: subjective language ('should be thankful'), judgment ('terrible idea'), and a recommendation, all violating objectivity requirements. Choice D is fragmented and misses the central idea entirely, just listing random facts without showing how the printing press revolutionized communication. To help students determine central idea and write objective summaries: (1) Practice DISTINGUISHING opinion from objective - OPINION/JUDGMENT: 'Unfortunately, deforestation is bad' (judgment), 'I think antibiotics are important' (personal view), 'People should use less social media' (recommendation). OBJECTIVE: 'Deforestation threatens biodiversity' (factual statement of text's point), 'Antibiotics have saved millions of lives' (text's claim), 'Social media transformed communication' (neutral description). (2) Teach OBJECTIVE SUMMARY writing - INCLUDE: Central idea (stated clearly), 1-3 most important supporting details that explain the central idea, Transitional words (because, by, through, which). EXCLUDE: Personal opinions ('I think,' 'I believe,' 'In my opinion'), Judgments ('Unfortunately,' 'The best,' 'It's terrible'), Minor details or repetitive examples, Your own knowledge not from text, Recommendations ('should,' 'must'). Use OWN WORDS (paraphrase, don't copy), Be CONCISE (much shorter than original), Stay OBJECTIVE (factual, neutral tone). (3) Use REVISION checklist - Draft summary, then check: Does it include central idea? Does it include key supporting details? Is it objective (no 'I think,' judgments, recommendations)? Is it concise? Is it in my own words? Does it maintain original meaning?

This question tests CCSS.RI.6.2: determining a central idea of a text and how it is conveyed through particular details, then providing a summary distinct from personal opinions or judgments, requiring students to identify main points, trace how they're developed, and synthesize objectively. The CENTRAL IDEA is the main point or message of the text—what the text is mostly about, the overarching concept that ties all details together. It's more specific than the topic (which is just one or two words like 'photosynthesis' or 'printing press') but broader than one supporting detail. The central idea is usually stated in one sentence capturing what the author wants readers to understand (e.g., 'Photosynthesis is essential for life on Earth' not just 'photosynthesis' or 'plants produce oxygen'). An OBJECTIVE SUMMARY restates the central idea plus the most important supporting details in your own words, staying factual without adding personal opinions ('I think'), judgments ('Unfortunately,' 'This is good/bad'), or recommendations ('People should'). A good summary is: (1) Concise (shorter than original), (2) Includes central idea clearly, (3) Adds 1-3 key supporting details that explain or develop the central idea, (4) Uses own words (not copied), (5) Stays objective and factual, (6) Maintains original meaning. In this passage, the CENTRAL IDEA is: 'Photosynthesis is essential for life on Earth' (stated directly in sentence 1). This central idea is CONVEYED THROUGH particular details: the passage supports this claim by explaining the process (plants use sunlight to make sugar that stores energy), showing the food chain connection (animals get energy by eating plants or animals that ate plants), and noting oxygen production (releases oxygen that humans and animals breathe). Each detail demonstrates a different way photosynthesis supports life. Choice C is correct because it accurately identifies the central idea that photosynthesis is essential for life and includes the two key reasons why—it provides both energy (through food chains) and oxygen. This statement captures the main point that all details in the passage support. The passage doesn't just describe photosynthesis (too broad) or just explain one aspect like oxygen production (too narrow); it argues that photosynthesis is ESSENTIAL FOR LIFE, which is supported by details about energy storage, food chains, and oxygen production. This is the overarching claim that unifies all details. Choice A is incorrect because it's too narrow—it focuses on one supporting detail (how plants make sugar) rather than the overall main point that photosynthesis is essential for life. Supporting details are pieces of evidence; the central idea is what they all support. Choice B similarly focuses on just one aspect (animals depending on plants) without capturing the full central idea. Choice D is also too narrow, mentioning only oxygen release without the broader significance. To help students determine central idea and write objective summaries: (1) Teach CENTRAL IDEA identification - NOT the topic (one or two words—too broad): 'photosynthesis,' 'printing press,' 'deforestation.' NOT one detail (too narrow): 'Oxygen is produced,' 'Books were expensive,' 'Species lose habitats.' IS the main point/claim (specific statement that details support): 'Photosynthesis is essential for life,' 'The printing press revolutionized communication,' 'Deforestation threatens biodiversity.' Ask: What is this text mostly about? (more than one word), What point do most details support?, What does the author want me to understand? Look for: Repeated concepts, topic sentences, what most information relates to, overarching claim. (2) Teach how CENTRAL IDEA is CONVEYED through details - Details SUPPORT central idea through: Examples (specific instances), Statistics/Facts (numerical data), Explanations (how/why), Descriptions (what it's like), Comparisons/Contrasts (showing differences or similarities), Cause-Effect (results or consequences), Expert testimony or research, Historical context. Ask: Which details support the central idea? How do these details develop or explain the main point? Example: Central idea: 'Photosynthesis is essential for life.' Supporting details: Explains process (converts sunlight to energy) → shows HOW it works, Connects to food chain (plants → animals) → shows essential for FOOD, Notes oxygen production (air we breathe) → shows essential for OXYGEN. Each detail demonstrates a different aspect of 'essential for life.'

This question tests CCSS.RI.6.2: determining a central idea of a text and how it is conveyed through particular details, then providing a summary distinct from personal opinions or judgments, requiring students to identify main points, trace how they're developed, and synthesize objectively. The CENTRAL IDEA is the main point or message of the text—what the text is mostly about, the overarching concept that ties all details together. It's more specific than the topic (which is just one or two words like 'photosynthesis' or 'printing press') but broader than one supporting detail. The central idea is usually stated in one sentence capturing what the author wants readers to understand (e.g., 'Photosynthesis is essential for life on Earth' not just 'photosynthesis' or 'plants produce oxygen'). An OBJECTIVE SUMMARY restates the central idea plus the most important supporting details in your own words, staying factual without adding personal opinions ('I think'), judgments ('Unfortunately,' 'This is good/bad'), or recommendations ('People should'). A good summary is: (1) Concise (shorter than original), (2) Includes central idea clearly, (3) Adds 1-3 key supporting details that explain or develop the central idea, (4) Uses own words (not copied), (5) Stays objective and factual, (6) Maintains original meaning. In this passage, the CENTRAL IDEA is: 'The Harlem Renaissance celebrated African American culture and had lasting influence.' This central idea is CONVEYED THROUGH particular details: the passage supports this by providing temporal context (1920s), giving specific examples of cultural contributions (writers like Hughes and Hurston creating poems and stories, musicians developing jazz and blues), explaining the movement's impact on perceptions (challenged stereotypes by showing richness of African American art), and noting long-term influence (inspired later civil rights efforts). Each detail shows either the celebration of culture or its influence. Choice A is correct because it accurately identifies the central idea (The Harlem Renaissance celebrated African American culture and influenced society) and correctly identifies a supporting detail (Writers like Hughes and Hurston produced influential works). The central idea captures the main point about both cultural celebration AND societal influence, which encompasses all the passage's details. The supporting detail about specific writers is one concrete example that develops this central idea. This answer correctly distinguishes between the overarching claim (central idea) and specific evidence (supporting detail). Choice B is incorrect because 'Jazz and blues are types of music' is too general and doesn't capture the central idea about the Harlem Renaissance; also, the civil rights influence is a supporting detail, not the central idea. Choice C incorrectly identifies 'Langston Hughes wrote poems' as the central idea when it's just one narrow supporting detail. Choice D includes subjective language ('unfair,' 'should') and doesn't accurately represent the passage's content. To help students determine central idea and write objective summaries: (1) Teach CENTRAL IDEA identification - NOT the topic (one or two words—too broad): 'photosynthesis,' 'printing press,' 'deforestation.' NOT one detail (too narrow): 'Oxygen is produced,' 'Books were expensive,' 'Species lose habitats.' IS the main point/claim (specific statement that details support): 'Photosynthesis is essential for life,' 'The printing press revolutionized communication,' 'Deforestation threatens biodiversity.' Ask: What is this text mostly about? (more than one word), What point do most details support?, What does the author want me to understand? Look for: Repeated concepts, topic sentences, what most information relates to, overarching claim. (2) Practice DISTINGUISHING central idea from supporting details - Central idea = overarching claim that unifies all information. Supporting details = specific examples, facts, or explanations that develop the central idea. Test: Could this statement encompass all the main information? (Yes = likely central idea). Is this just one piece of evidence? (Yes = supporting detail). Example: 'The Harlem Renaissance celebrated African American culture and influenced society' encompasses writers, musicians, challenging stereotypes, and inspiring civil rights. 'Writers like Hughes produced works' is just one specific example supporting the larger claim.

This question tests CCSS.RI.6.2: determining a central idea of a text and how it is conveyed through particular details, then providing a summary distinct from personal opinions or judgments, requiring students to identify main points, trace how they're developed, and synthesize objectively. The CENTRAL IDEA is the main point or message of the text—what the text is mostly about, the overarching concept that ties all details together. It's more specific than the topic (which is just one or two words like 'photosynthesis' or 'printing press') but broader than one supporting detail. The central idea is usually stated in one sentence capturing what the author wants readers to understand (e.g., 'Photosynthesis is essential for life on Earth' not just 'photosynthesis' or 'plants produce oxygen'). An OBJECTIVE SUMMARY restates the central idea plus the most important supporting details in your own words, staying factual without adding personal opinions ('I think'), judgments ('Unfortunately,' 'This is good/bad'), or recommendations ('People should'). A good summary is: (1) Concise (shorter than original), (2) Includes central idea clearly, (3) Adds 1-3 key supporting details that explain or develop the central idea, (4) Uses own words (not copied), (5) Stays objective and factual, (6) Maintains original meaning. In this passage, the CENTRAL IDEA is: 'Social media has transformed how people communicate' (stated in sentence 1). This central idea is CONVEYED THROUGH particular details: the passage supports this by providing examples (Instagram and TikTok), explaining capabilities (instant sharing of photos/videos worldwide), noting benefits (helping friends and families stay connected), acknowledging concerns (privacy and misinformation), and concluding with implications (users need to think carefully). The passage presents both positive transformations and challenges. Choice B is correct because it provides an objective summary that includes the central idea (social media changed communication) and the key supporting details from both sides—the positive aspects (instant sharing and connection) and the concerns (privacy and misinformation). This summary stays objective—no opinions like 'I think' or judgments like 'awesome' or 'worst'—and is concise, using own words to restate the passage's main points. It captures the essential meaning by including both the transformative benefits and the challenges, maintaining the balanced perspective of the original passage. Choice A is incorrect because it includes subjective language ('awesome') and a recommendation ('everyone should use it more'), making it non-objective. It also only presents positive aspects without the concerns mentioned in the passage. Choice C is too narrow, focusing only on specific apps and one detail about student use without capturing the central idea about transformation of communication. Choice D includes judgmental language ('confusing,' 'worst problem') and focuses only on negative aspects without the balanced view or central idea. To help students determine central idea and write objective summaries: (1) Teach CENTRAL IDEA identification - NOT the topic (one or two words—too broad): 'photosynthesis,' 'printing press,' 'deforestation.' NOT one detail (too narrow): 'Oxygen is produced,' 'Books were expensive,' 'Species lose habitats.' IS the main point/claim (specific statement that details support): 'Photosynthesis is essential for life,' 'The printing press revolutionized communication,' 'Deforestation threatens biodiversity.' Ask: What is this text mostly about? (more than one word), What point do most details support?, What does the author want me to understand? Look for: Repeated concepts, topic sentences, what most information relates to, overarching claim. (2) Teach OBJECTIVE SUMMARY writing - INCLUDE: Central idea (stated clearly), 1-3 most important supporting details that explain the central idea, Transitional words (because, by, through, which). EXCLUDE: Personal opinions ('I think,' 'I believe,' 'In my opinion'), Judgments ('Unfortunately,' 'The best,' 'It's terrible'), Minor details or repetitive examples, Your own knowledge not from text, Recommendations ('should,' 'must'). Use OWN WORDS (paraphrase, don't copy), Be CONCISE (much shorter than original), Stay OBJECTIVE (factual, neutral tone). Structure: '[Central idea]. [Key detail 1], [Key detail 2], [Key detail 3 if needed].'

This question tests CCSS.RI.6.2: determining a central idea of a text and how it is conveyed through particular details, then providing a summary distinct from personal opinions or judgments, requiring students to identify main points, trace how they're developed, and synthesize objectively. The CENTRAL IDEA is the main point or message of the text—what the text is mostly about, the overarching concept that ties all details together. It's more specific than the topic (which is just one or two words like 'photosynthesis' or 'printing press') but broader than one supporting detail. The central idea is usually stated in one sentence capturing what the author wants readers to understand (e.g., 'Photosynthesis is essential for life on Earth' not just 'photosynthesis' or 'plants produce oxygen'). An OBJECTIVE SUMMARY restates the central idea plus the most important supporting details in your own words, staying factual without adding personal opinions ('I think'), judgments ('Unfortunately,' 'This is good/bad'), or recommendations ('People should'). A good summary is: (1) Concise (shorter than original), (2) Includes central idea clearly, (3) Adds 1-3 key supporting details that explain or develop the central idea, (4) Uses own words (not copied), (5) Stays objective and factual, (6) Maintains original meaning. In this passage, the CENTRAL IDEA is: 'The printing press revolutionized communication in the 15th century' (stated in sentence 1). This central idea is CONVEYED THROUGH particular details: the passage develops this idea through contrast (before: books were copied by hand and were expensive and rare vs. after: books could be produced faster and at lower cost), identifying the inventor (Johannes Gutenberg), and explaining consequences (more people could buy books so education became more available, and ideas spread more quickly across Europe). The details show both the problem that existed before and the transformative effects after the invention. Choice B is correct because it accurately identifies how the author uses comparison/contrast (life before and after the press) and cause-effect relationships (explaining its effects on education and idea spread) to develop the central idea. This answer correctly identifies how the author uses specific techniques—comparing the situation before the press (hand-copied, expensive, rare books) with after (faster, cheaper production) and then explaining the effects (more available education, faster spread of ideas)—to show how the printing press revolutionized communication. These details directly support and develop the central claim about revolutionary change. Choice A is incorrect because listing types of books printed doesn't appear in the passage and wouldn't effectively convey how the press revolutionized communication—it would just be examples without showing transformation. Choice C about Gutenberg's childhood is irrelevant to how the central idea is conveyed; the passage only mentions him as the inventor, not his background. Choice D is incorrect because the passage contains no opinions about reading as a hobby; it stays objective and factual about the historical impact. To help students determine central idea and write objective summaries: (1) Teach CENTRAL IDEA identification - NOT the topic (one or two words—too broad): 'photosynthesis,' 'printing press,' 'deforestation.' NOT one detail (too narrow): 'Oxygen is produced,' 'Books were expensive,' 'Species lose habitats.' IS the main point/claim (specific statement that details support): 'Photosynthesis is essential for life,' 'The printing press revolutionized communication,' 'Deforestation threatens biodiversity.' Ask: What is this text mostly about? (more than one word), What point do most details support?, What does the author want me to understand? Look for: Repeated concepts, topic sentences, what most information relates to, overarching claim. (2) Teach how CENTRAL IDEA is CONVEYED through details - Details SUPPORT central idea through: Examples (specific instances), Statistics/Facts (numerical data), Explanations (how/why), Descriptions (what it's like), Comparisons/Contrasts (showing differences or similarities), Cause-Effect (results or consequences), Expert testimony or research, Historical context. Ask: Which details support the central idea? How do these details develop or explain the main point? Example: Central idea: 'The printing press revolutionized communication.' Supporting details: Contrast (before: expensive hand-copied books vs after: quick cheap production) → shows CHANGE, Identifies inventor (Gutenberg) → provides CONTEXT, Explains consequences (made education accessible, spread ideas) → shows IMPACT. Each detail demonstrates how communication was transformed.

This question tests CCSS.RI.6.2: determining a central idea of a text and how it is conveyed through particular details, then providing a summary distinct from personal opinions or judgments, requiring students to identify main points, trace how they're developed, and synthesize objectively. The CENTRAL IDEA is the main point or message of the text—what the text is mostly about, the overarching concept that ties all details together. It's more specific than the topic (which is just one or two words like 'photosynthesis' or 'printing press') but broader than one supporting detail. The central idea is usually stated in one sentence capturing what the author wants readers to understand (e.g., 'Photosynthesis is essential for life on Earth' not just 'photosynthesis' or 'plants produce oxygen'). An OBJECTIVE SUMMARY restates the central idea plus the most important supporting details in your own words, staying factual without adding personal opinions ('I think'), judgments ('Unfortunately,' 'This is good/bad'), or recommendations ('People should'). A good summary is: (1) Concise (shorter than original), (2) Includes central idea clearly, (3) Adds 1-3 key supporting details that explain or develop the central idea, (4) Uses own words (not copied), (5) Stays objective and factual, (6) Maintains original meaning. In this passage, the CENTRAL IDEA is: 'Photosynthesis is essential for life on Earth' (stated in sentence 1). This central idea is CONVEYED THROUGH particular details: the passage explains how plants capture sunlight and convert it to chemical energy in sugar (the process), describes how this energy supports food chains when animals eat plants or other animals (energy transfer), notes that photosynthesis produces oxygen needed for survival (oxygen production), and concludes that these results show why the process matters to nearly all living things (synthesis). Each detail demonstrates why photosynthesis is essential. Choice A is correct because it concisely captures the most important points: the central idea (photosynthesis is essential) and the two key supporting reasons (makes sugar for energy and releases oxygen needed for life). This summary is objective (no opinions or judgments), concise (much shorter than the original), includes the central idea clearly, adds the most important supporting details that explain why photosynthesis is essential, uses own words, and maintains the original meaning. It effectively synthesizes the passage's main points without unnecessary details or personal reactions. Choice B is incorrect because it lists disconnected facts without showing relationships or the central idea—it doesn't explain why these facts matter or how they connect to photosynthesis being essential. Choice C includes subjective language ('should protect,' 'best natural process') that makes it non-objective, adding recommendations and judgments not in the original text. Choice D includes false information (photosynthesis doesn't happen in roots, and timing varies) and misses the central idea about why photosynthesis is essential for life. To help students determine central idea and write objective summaries: (1) Teach OBJECTIVE SUMMARY writing - INCLUDE: Central idea (stated clearly), 1-3 most important supporting details that explain the central idea, Transitional words (because, by, through, which). EXCLUDE: Personal opinions ('I think,' 'I believe,' 'In my opinion'), Judgments ('Unfortunately,' 'The best,' 'It's terrible'), Minor details or repetitive examples, Your own knowledge not from text, Recommendations ('should,' 'must'). Use OWN WORDS (paraphrase, don't copy), Be CONCISE (much shorter than original), Stay OBJECTIVE (factual, neutral tone). Structure: '[Central idea]. [Key detail 1], [Key detail 2], [Key detail 3 if needed].' (2) Teach SELECTING most important points - Ask: What is the central idea? What 2-3 details best explain or support it? Which details could be left out without losing main meaning? Example: Central idea: 'Photosynthesis is essential for life.' Most important: energy production (supports food chains) and oxygen production (needed for survival). Less important: specific mention of 'chemical energy' or 'sugar'—can simplify to 'energy.' Combine related ideas: 'supports food chains when animals eat plants or other animals' → 'provides energy for food chains.'

This question tests CCSS.RI.6.2: determining a central idea of a text and how it is conveyed through particular details, then providing a summary distinct from personal opinions or judgments, requiring students to identify main points, trace how they're developed, and synthesize objectively. The CENTRAL IDEA is the main point or message of the text—what the text is mostly about, the overarching concept that ties all details together. It's more specific than the topic (which is just one or two words like 'photosynthesis' or 'printing press') but broader than one supporting detail. The central idea is usually stated in one sentence capturing what the author wants readers to understand (e.g., 'Photosynthesis is essential for life on Earth' not just 'photosynthesis' or 'plants produce oxygen'). An OBJECTIVE SUMMARY restates the central idea plus the most important supporting details in your own words, staying factual without adding personal opinions ('I think'), judgments ('Unfortunately,' 'This is good/bad'), or recommendations ('People should'). A good summary is: (1) Concise (shorter than original), (2) Includes central idea clearly, (3) Adds 1-3 key supporting details that explain or develop the central idea, (4) Uses own words (not copied), (5) Stays objective and factual, (6) Maintains original meaning. In this passage, the CENTRAL IDEA is: 'Deforestation threatens biodiversity worldwide' (stated in sentence 1). This central idea is CONVEYED THROUGH particular details: the passage supports this claim by providing context (tropical rainforests contain over half of Earth's plant and animal species), explaining the mechanism (when forests are cleared, species lose their habitats), and quantifying the impact with statistics (scientists estimate dozens of species go extinct each day due to deforestation). Each detail builds the case for how deforestation threatens biodiversity. Choice D is correct because it best supports the central idea by providing concrete evidence of the threat—it quantifies the devastating impact of deforestation with a specific statistic about daily extinctions. This detail directly demonstrates HOW deforestation threatens biodiversity by showing the severe consequence: dozens of species going extinct each day. This statistical evidence makes the threat concrete and measurable, strongly supporting the claim that deforestation threatens biodiversity worldwide. It's the most powerful supporting detail because it shows the actual impact rather than just describing the process. Choice A is incorrect because it's just a general description of rainforest climate that doesn't relate to deforestation or biodiversity threats—it's off-topic. Choice B about people visiting rainforests is also irrelevant to the central idea about deforestation threatening biodiversity. Choice C mentions deforestation but doesn't show how it threatens biodiversity; it only states why deforestation happens without connecting to the impact on species. To help students determine central idea and write objective summaries: (1) Teach CENTRAL IDEA identification - NOT the topic (one or two words—too broad): 'photosynthesis,' 'printing press,' 'deforestation.' NOT one detail (too narrow): 'Oxygen is produced,' 'Books were expensive,' 'Species lose habitats.' IS the main point/claim (specific statement that details support): 'Photosynthesis is essential for life,' 'The printing press revolutionized communication,' 'Deforestation threatens biodiversity.' Ask: What is this text mostly about? (more than one word), What point do most details support?, What does the author want me to understand? Look for: Repeated concepts, topic sentences, what most information relates to, overarching claim. (2) Teach how CENTRAL IDEA is CONVEYED through details - Details SUPPORT central idea through: Examples (specific instances), Statistics/Facts (numerical data), Explanations (how/why), Descriptions (what it's like), Comparisons/Contrasts (showing differences or similarities), Cause-Effect (results or consequences), Expert testimony or research, Historical context. Ask: Which details support the central idea? How do these details develop or explain the main point? Example: Central idea: 'Deforestation threatens biodiversity.' Supporting details: Context (rainforests contain half of species) → shows WHAT'S AT RISK, Mechanism (clearing forests = lost habitats) → shows HOW threat occurs, Statistics (dozens extinct daily) → shows SEVERITY of impact. The statistical detail is strongest because it quantifies the threat.