Teenagers naturally experience a shift in their circadian rhythms, causing them to feel sleepy later at night and want to wake later in the morning. Schools that have moved their start times from 7:30 AM to 8:45 AM have reported improved attendance, fewer disciplinary issues, and higher test scores. Despite these benefits, many districts resist changing schedules due to transportation logistics.
Based on the passage, it can be inferred that
teenagers choose to stay up late for social reasons only
earlier school start times may conflict with adolescent biology
changing school times has no measurable effects
transportation is the only factor schools consider when setting schedules
Correct Answer: B
Choice B is the best answer. Teen biology favors later sleep times, and later starts show benefits.
- Context clues: Teens "naturally" feel sleepy later due to "circadian rhythms"; later starts improved outcomes.
- Meaning: Early starts work against natural biological patterns.
- Verify: Improved attendance, behavior, and scores with later starts confirm the conflict.
💡 Strategy: When biological facts align with observed improvements from a change, infer a biological mismatch in the original situation.
Choice A is incorrect because the shift is "natural," not just social choice. Choice C is incorrect because there were measurable improvements. Choice D is incorrect because it's given as an example of resistance, not the only consideration.