Given the task definition and input, reply with output. 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: Are you going on to graduate school when you get your BA? ,F: I have considered going on for a Masters degree, but I may put off getting it. ,M: Why is that? ,F: I think I'd like to work for a while before I start graduate school. ,M: I've considered working for a while. But I don't want to put off learning Chinese. ,F: Have you considered taking time off to go to China again?
(A) M: I didn't hear you. Please could you tell me again? (B) M: I'm not sure. I have been to China once. (C) M: I'm not sure. I have never been to China and I am not interested in Chinese. (D) M: I'm not sure. I have never been to China and I have got my Master's degree.
B