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听力原文：W: Cattle raising in the U.S. is a big business, isn't it? It must be very profitable. M: Uh...not really. At times it's not profitable. It's a supply and demand market, you know. The price is fluctuating all the time, and it can get below production costs sometimes. Q: What can be inferred from the conversation? (14)A.
The price fluctuates all the time because the production costs are high.
B.
The production costs will be higher if the market demands more beef.
C.
The price will get below production costs if your supply is larger than demand.
D.
Cattle raising is a non-profit-making business in the U.S.
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