Which of the Following Statements Is/are FALSE Regarding REM Sleep

Which of the following statements is/are FALSE regarding REM sleep?

A) During REM sleep, there is an absence of voluntary muscle movement.
B) REM sleep is characterized primarily by delta brain-wave activity.
C) During REM sleep, dreams are typically vivid and have a story-like quality.
D) Nightmares typically occur during REM sleep.
E) Both REM sleep is characterized primarily by delta brain-wave activity AND nightmares typically occur during REM sleep.