Sleepwalking, Like Night Terrors, Is Experienced Most Often by Children

Sleepwalking, like night terrors, is experienced most often by children. Another similarity between sleepwalking and night terrors is that

A) it is impossible to awaken a person while they are sleepwalking or having night terrors
B) it is easy to awaken a person while they are sleepwalking or having night terrors
C) both sleepwalking and night terrors occur in stages 3 and 4 of the slow wave sleep
D) people awaken themselves during the sleepwalking or night terrors