You will be given a definition of a task first, then some input of the task.
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.

F: Excuse me. Can you speak Chinese? I like Chinese very much. ,M: Yes, I'm from Taiwan. I came here to study political science, but my English needs improving. I make too many grammatical mistakes. ,F: I want to study Mandarin and international relations. Maybe we could do a language exchange. ,M: You mean, you and I?
(A) F: You are not at English grammar, so I can teach you that and you teach me Mandarin. (B) F: Yeah. I help you correct pronunciation mistakes in English and you teach me French. (C) F: You need me to correct your grammatical mistakes and I need your German ability. (D) F: I am really sorry, I did not catch that. Would you slow down, please?
Output:
A