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: Excuse me. You are Mr. Green from Manchester, aren't you? ,M: Yes, I'm glad you recognized me. ,F: A man with white hair and a beard, isn't that how you describe yourself in the telex? So it's easy to spot you in any crowd. Let me introduce myself. I am Tan Ling, source manager of Yellow River Import and Export Corporation. How do you do?
(A) M: We have known each other very well before. I feel sad that you didn't recognize me. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: You are right. I have already gave you the description of myself in the telex. (D) M: You can find the description of me in the telex, why can't you recognize me?

C