W: Excuse me, sir. I think you dropped this on the platform back there. M: Oh, thank you so much! It would have been terrible if I had gotten on the subway without my wallet! W: Don't mention it. Oh, there's my train! See you!, Question: Where does the conversation probably take place? (A) On a train. (B) At a bus stop. (C) At a subway station.
(C) At a subway station.