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: M: How much do I need to pay? ,F: Let me see. Um, $9 and $8. That's $17, sir. ,M: OK, here is a $20 bill.
(A) F: Thank you. Here's you change, $7. (B) F: You need pay $3 more. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Why did you pay $9?

C