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.

M: I have looked everywhere for the sign up sheet for next week's Field Trip. Have you seen it, Matilda? ,F: I saw it yesterday. But I'm not sure where it is now, and I don't know whether I'll be able to join you.
(A) M: I am still not sure about when I can take the field trip. (B) M: I want to know about where the sign-up sheet is, so we can go to the field trip together. (C) M: I am still not sure about where the sign-up sheet is. (D) M: I'm sorry, I didn't catch that. Would you mind speaking more slowly?
Output:
C