The Parents of a 5-Year-Old Boy Tell the Nurse That

The parents of a 5-year-old boy tell the nurse that their son is having frequent episodes of night terrors. Which of the following statements would indicate that the boy is having nightmares instead of night terrors?

A) "It usually happens about an hour after he falls asleep."
B) "He will tell us about what happened in his dream."
C) "He is completely unaware that we are there."
D) "When we try to comfort him, he screams even more."