During the night, a 50-year-old Vietnam veteran with posttraumatic stress syndrome wakens shaking and tells you that someone is trying to smother him. What is the appropriate response for the nurse in this situation（）
A. "It was a bad dream. You are safe. I’ll stay here with you until you go back to sleep. "
B. "We can talk about it tomorrow. Try to see if you can get back to sleep. "
C. "It was only a dream. There’s nothing to be frightened about. "
D. "I’ll call the physician and see whether I can get you medication to help you go back to sleep. "
