The Differentiation Between Children's Nightmares and Sleep Terrors Includes Which

The differentiation between children's nightmares and sleep terrors includes which of the following?

A) Nightmares occur during non-REM sleep, whereas sleep terrors occur during REM sleep.
B) During nightmares the child is easy to arouse and responsive to the environment, whereas during sleep terrors the child is difficult to arouse and largely unresponsive to the environment.
C) There is limited or no memory for nightmares, whereas the contents of sleep terrors may be remembered fairly clearly.
D) There is intense physiological arousal during nightmares, whereas there is only moderate physiological arousal during sleep terrors.