Definition: In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.
Input: F: How much is this piano, please? ,M: $1000. ,F: My god! That's a fortune! ,M: But you must realize that this is the most famous brand. ,F: But it's too dear for me. ,M: That's the best piano hit our store. ,F: I just want to get one for my daughter to learn how to play the piano. ,M: Then how about this one made in New York? It's priced at only $620. ,F: I hope its quality is guaranteed. ,M: Oh, yes, madam. As ours is a well known store, our goods are always dependable. ,F: Can you make it any cheaper? It's the first time that I've visited your store. ,M: For the first time, I'll make it an even figure $600. ,F: Thank you. By the way, can you have it delivered? ,M: Yes, of course, madam. We will deliver it free of charge.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: Your store is not well-known, but I still feel it is worthy to spend $1000 in your store to buy a piano for my daughter. (C) F: Thank you for delivering the piano for free. Your service is very good even though your store is not well known. (D) F: Oh, your are so considerate to deliver the piano for free. I'm sure I will come back if my daughter need a new one.

D