M: Excuse me, I think you are in my seat. W: Sorry, but it says 7A on my boarding card. M: Oh, right. I asked for a window seat, you see. W: Yes, so did I. What's your seat number? M: Let's see. Oh, it's 8A. W: So I guess you are in the seat behind me. M: Oh, yes. Sorry about that., Question: What is the man doing? (A) Changing seats on the plane. (B) Asking for a window seat. (C) Trying to find his seat.
(A) Changing seats on the plane.