现金日记帐和银行日记帐必须每（）结出余额。

A、日

B、周

C、月

D、季

W: Aren’t you disappointed that you didn’t get the promotion
M: May be a little, but I know I need more experience before I’m ready for that kind of responsibility.
Q: What do we learn about the man from this conversation().

A. He is rather disappointed.

B. He is highly ambitious.

C. He can’t face up to the situation.

D. He knows his own limitations.