Identify a True Statement About REM Sleep in Infancy

Identify a true statement about REM sleep in infancy.

A) Compared with non-REM sleep, a much greater amount of time is taken up by REM sleep in infancy than at any other point in the life span.
B) Compared with non-REM sleep, REM sleep is more quiet.
C) Infants often begin their sleep cycle with non-REM sleep rather than REM sleep.
D) REM sleep hinders self-stimulation in infants since they spend less time awake than do older children.