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: M: Hi Grandma, it's so good to see you again. ,F: Nice to see you Jack. ,M: We haven't seen each other for half a year.
(A) F: Yeah, it's been one and a half year since I last saw you. Let me look at you. (B) F: Oh, yes. Last time I saw you, it was half a year ago. You've grown up, our boy. (C) F: It's one year ago that I saw you the last time. You are taller, my sweetie son. (D) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?

B