A、Caller and operator. B、Salesman and customer. C、Airline agent and customer. D、stewardess and passenger. C

M: Excuse me. Could you tell me where the post office is?
W: Walk down the street for 3 blocks and then turn left at the 3rd Avenue, go straight for two more blocks to get to the Eighth Street and it’s on the right.
Q: How many blocks did the man have to go to the post office?

W: There is a direct flight at 9 o’clock or a flight at 2 this afternoon that stops over in Rome.
M: I think I’d rather leave earlier so as to work.
Q: What relationship do these people most probably have?