Multiple Choice
Which of the following statements regarding sleep is true?
A) We only have dreams during REM sleep.
B) We only have dreams during non-REM sleep.
C) Dreams can occur during either REM or non-REM sleep, but non-REM dreams are usually longer.
D) Dreams can occur during either REM or non-REM sleep, but REM dreams are usually longer.
Correct Answer:

Verified
Correct Answer:
Verified
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