A)Clean her house while she is away.
B)Buy her some plants and take care of them.
C)Water her plants while she is away.
D)Water her plants when he is not at work
原文：
W: If I buy some plants for the house, will you water them for me while I'm a way?
M: Sure I will, if you water mine while I am on vacation.
Q: What will the man do for the woman?