Detailed Instructions: In this task, you will be shown a conversation. You need to write a question with three choices for the conversation. Your question should be answerable based on the conversation and only have one correct answer. Note that you don't need to answer your question. "W" and "M" in the conversations stand for "woman" and "man".
Q: M: What can I do for you? W: I want to buy a sweater for my son. This yellow one doesn't have a price on it. How much does it cost? Do you know? M: Yes, it's 42.33. W: That's too expensive. M: Here's a nice nylon one for 15.88. We sell a lot of these. W: Yes, it is nice. I think I'll take it. M: Do you want anything else? This kind of trousers is in discount. It only costs 13 each pair. W: That's nice. OK, I'll take one.
A:
What's the reason for the woman to buy the nylon one instead of the yellow one? (A) The nylon one is cheap and it is nice, too. (B) The yellow one is too expensive. (C) Both A and B.