Students who sleep eight hours score higher in exams, so schools should begin later in the day. Which, if true, most strengthens this argument?
ASome students nap in the afternoon
BTeachers tend to prefer early mornings
CLater start times have been shown to increase how long students sleep
DSleeping is a pleasant activity
Answer & Solution
Correct answer: C. Later start times have been shown to increase how long students sleep
If later starts demonstrably raise sleep, the chain 'later start → more sleep → higher scores' is reinforced.
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