听力原文：M: I couldn't put up with my wife any longer. I don't know why she always wants to look at everything in such a negative way and to discourage other people.
W: Maybe you should try to get to know something about her childhood and try to help her out.
Q: What does the woman mean？
(15)

A. The man's wife should try to be more understanding.
B. The depression of the man's wife may be the result of her past experiences.
C. The man's negative attitude may be derived from his childhood.
D. It is easy for the man to help his wife out of pessimism.