A、The houses for sale are of poor quality B、The houses are too expensive for the couple to buy C、The housing developers provide

W: Bob said that Seattle is a great place for conferences.
M: He is certainly in the position to make that comment. HE has been there so often.
Q: What does the man say about?

M: This article is nothing but advertising for housing developers. I don’t think the houses for sale are half that good.
W: Come on, David. Why so negative? We are thinking of buying a home, aren’t we? Just a trip to look at the place won’t cost us much.
Q: What can be inferred form the conversation?