A)She will save the stamps for the man's sister.
B)She will no longer get letters from Canada.
C)She can't give the stamps to the man's sister.
D)She has given the stamps to the man's roommates.
原文：
M: I've noticed that you get letters form Canada from time to time. Would you mind saving
the stamps for me? My sister collects them.?
W: My roommate already asked for them.?
Q: What does the woman imply??