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: What's in your hand, Bob? ,M: It's a German textbook. I'm learning German now. ,F: But aren't you also learning French? Don't tell me you're learning them at the same time. ,M: Well, that's exactly what I'm doing now.
(A) F: Learning one language is good. Is it a Chinese textbook in your hand? (B) F: Are learning two languages namely Chinese and French? You are not learning French, right? (C) F: I didn't hear you. Please could you tell me again? (D) F: How can you learn three languages at the same time? But you don't choose to learn French.
Output:
C