单选题 M: How's John now? Is he feeling any better?
W: Not yet. It still seems impossible to make him smile. Talking to him is really difficult, and he gets upset easily over little things.
Q: What do we learn about John from the conversation?
A. He has a strange personality.
B. He's got emotional problems.
C. His illness is beyond cure.
D. His behavior is hard to explain.