A)The woman is close friend of the man.
B)The woman has been w orking too hard.
C)The woman is seeing a doctor.
D)The woman is tired of her work.
原文：
M: Hello, Mrs. White, what can I do for you?
W: I don't know what's the matter with me? I'm always feeling tired, I'm usually
worn out at the end of the day.
Q: What do we learn from the conversation?