John will likely experience REM rebound tonight if he

Question

Quizplus · Accepted Answer

REM rebound occurs when there is a significant decrease in the amount of rapid eye movement (REM) sleep during a previous night's sleep. If John did not sleep much last night, his body will have a greater need for REM sleep, leading to REM rebound tonight. A sleeping pill (A) or caffeine (B) could affect the quality or amount of REM sleep, but may not necessarily lead to REM rebound. Having vivid dreams (D) may indicate higher levels of REM during the previous night's sleep but does not necessarily guarantee REM rebound.

John Will Likely Experience REM Rebound Tonight If He