Man: Can you come over for dinner tonight? Woman: I’m up to my ears in work, so I’ll have to take a rain check.Question: What does the woman mean?

Man: Can you come over for dinner tonight? Woman: I’m up to my ears in work, so I’ll have to take a rain check.Question: What does the woman mean?
A.She wants to check the weather before deciding.
B.She has a problem with her hearing.
C.She’d enjoy coming to dinner another time.
D.She wants the man to help her with some work.
正确答案：C