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Expression of IdeasHardExplaining a decision with evidence

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - A school moved its start time from 8:00 to 9:00 in 2022. - Teenagers' sleep cycles run later than adults'. - After the change, late arrivals fell by 60 percent. - Teachers reported more alert classes in the first period. The student wants to explain the reason for the change and show that it worked.

Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. Because teenagers' sleep cycles run later than adults', the school moved its start time from 8:00 to 9:00 in 2022, after which late arrivals fell by 60 percent and teachers reported more alert first-period classes.Correct
  2. B. The school moved its start time to 9:00 in 2022.
  3. C. Late arrivals fell by 60 percent.
  4. D. Teenagers' sleep cycles run later than adults'.

Answer: A. Because teenagers' sleep cycles run later than adults', the school moved its start time from 8:00 to 9:00 in 2022, after which late arrivals fell by 60 percent and teachers reported more alert first-period classes.

Reason, change, results.

Why the other answers are wrong

B. The school moved its start time to 9:00 in 2022.
The change alone.
C. Late arrivals fell by 60 percent.
A result alone.
D. Teenagers' sleep cycles run later than adults'.
The reason alone.

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