单项选择题
W: May I help you
M: Yes, I’d like to rent a car for a few days．
W: OK
M: Can you tell me the rate per day
W: Yes, it’s 25 dollars．
M: Do you have a drop-off service
W: No, I’m sorry．It will have to be returned to the airport．
A. To rent a car．
B. To go to the airport．
C. To ask about road tax．
D. To have a discount on cab fare．