W: Would you mind taking your feet off the desk, Bill? M: Sorry, but I was very comfortable. W: But do you put your feet on your own desk? M: No, never. I don't want to mark my desk. W: Well, would you please keep my desk clean? M: Aren't you going to sell it? W: Yes, but who wants a badly marked one?, Question: Why did the man do so? (A) Because the desk is going to be sold. (B) Because it is his own desk. (C) Because the desk is not his own.
(A) Because the desk is going to be sold.