Maxine is currently sleeping.She is experiencing delta waves and is very hard to waken.Maxine is in __________ sleep.
A)stage 1
B)stage 2
C)stage 4
D)REM

Question

Quizplus · Accepted Answer

Delta waves are characteristic of stage 4 sleep, also known as slow-wave sleep, which is the deepest stage of non-REM sleep. The fact that Maxine is difficult to wake up also indicates that she is in a deep stage of sleep, further supporting the answer of stage 4.

Maxine Is Currently Sleeping