Professor Steinberg Tells Her Class That During a Normal Sleep

question 31

Multiple Choice

 Professor Steinberg tells her class that during a normal sleep cycle, a person will progress from _____.

• A) Stage 1 to 2, 3, and 4 before entering REM sleep.
• B) Stage 4 to 3, 2, and 1 before entering REM sleep.
• C) Stage 1 to 4 then back to 3 and 2, and then entering REM sleep.
• D) Stage 1 to 4 at the beginning of the night. Later on, the cycle is Stage 1 and 2 and then REM.