Answer: I think there is no wrong or right answer to the question.
Explanation:
<span>The choices can be found elsewhere and as follows:
</span><span>A) REM; Stage 1
B) Stage 1; REM
C) REM; Stage 2
D) Stage 2; REM
E) REM; Stage 4
</span><span>
I believe the correct answer is option E. Paradoxical sleep is to slow-wave sleep as REM sleep is to stage 4 sleep. Hope this answers the question.</span>
