Read the following excerpt from a school board op-ed and answer the question.
The district's new "phones away" policy is being debated as if it were a punishment rather than a tool. Teachers report that even brief notifications derail discussions, and a student survey last spring found that 62 percent of respondents checked their phones "at least once" during a single class period. A policy that reduces that friction is not anti-technology; it is pro-attention. Critics argue that emergencies require constant access, but the policy allows students to retrieve phones from locked pouches during lunch and directs families to call the front office for urgent messages. By requiring phones to stay sealed during class, the policy improves learning for students who struggle to focus. The point is not to shame teenagers; it is to design classrooms that make concentration the default.
Which revision most improves clarity of the bolded sentence?
- The policy improves learning for students who struggle to focus by requiring phones to stay sealed during class. (correct answer)
- Requiring phones to stay sealed during class, students who struggle to focus improve their learning under the policy.
- During class, the policy, which requires phones to stay sealed, improves learning for students who struggle to focus.
- The policy improves learning, by requiring phones to stay sealed during class, for students who struggle to focus.
Explanation: This question tests clarity through proper sentence structure and logical flow. The original sentence begins with a modifying phrase ("By requiring phones to stay sealed during class") that should immediately precede what it modifies. Choice A correctly places the main subject ("The policy") at the beginning, followed by the main verb ("improves"), then clearly states what the policy does ("by requiring phones to stay sealed during class") as a subordinate element. Choice B creates a dangling modifier where "students" incorrectly appears to be doing the requiring. Choice C unnecessarily interrupts the main clause with a relative clause, and Choice D awkwardly splits the verb from its object with an intrusive prepositional phrase. The key strategy is to identify the true subject of the action and ensure modifying phrases clearly attach to what they modify.