1.

PART A: Which statement best expresses the central idea of the text?

A

Teenagers require a unique amount of sleep to fully function, which depends on their specific age and the individual demands of their bodies.

B

Adults who did not get enough sleep during their teenage years showed slower mental development than those who did get enough sleep.

C

Teenagers function better during the day if they are allowed to follow their internal clock and sleep as much as they can.

D

Sleeping for 8-10 hours a night supports teenagers’ mental development and guarantees that teens perform better in school.