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: What can I do for you? ,M: I'd like to return some books. ,F: I'll take them. ,M: Thanks. Here are all of them.
(A) F: You are welcome. Which page has the teacher asked us to turn to? (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: All done. Here is your library card. (D) F: You are welcome. Please go to the cashier of the bookstore to get your refund.

C