听力原文：M: I was so regretful to hear that Jim lost his job. I know that his wife was sick last month, so he waa always late to work.
W: Oh, that wasn't it. Jim made a big error in this week's accounting. The boss was furious.
Q: According to the woman, why was Jim fired？
(17)

A. He was always late to work.
B. He got furious with his boss last week.
C. He made a serious mistake in a financial problem.
D. He wanted to take care of his wife.