Which of the Following Statements Supports the "Preserve and Protect

Multiple Choice

Which of the following statements supports the "preserve and protect" hypothesis of sleep?

A) People tend to require more sleep after a hard day of work.
B) Sleep deprivation can lead to impaired cognitive abilities due to lack of active involvement with outside world.
C) Jet lag is usually worse when travelling east than it is when travelling west.
D) Many small animals sleep during the day,when they could be easily seen by a predator.