Task: Dialogue Generation
Input (English): F: May I have a look at that tie, please? What's the price? ,M: It's $30. But today we offer a 20% discount if you buy more than 2.
(A) F: Three belts cost $60, so one belt is $20. Great! (B) F: Excuse me, could you repeat the question? (C) F: It's a good deal to buy three ties for 72 dollars. (D) F: Oh, 90 dollars is too much for two ties.
Output (English): C