A、The cup is full already. B、She would be impolite to accept another. C、She is full already. D、She has overdone. C

W: Mary bought this dress for five dollars, saving four dollars and fifty cents.
M: Really?
Q: What was the original price for the dress?

M: Care for another cup of tea? There’ s plenty in the pot.
W: I’ d be overdoing it if I had one more.
Q: What does the woman mean?