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.

F: What do you do exactly? ,M: I work for a travel company. I arrange tours. ,F: How do you like it? ,M: I like it very much. I like traveling around the world but I work long hours. I feel tired sometimes, but I never think it boring. And what do you do? ,F: I study history in Lincoln University. ,M: Oh, really? I think it's challenging. You have to remember too many things. By the way, my sister is studying hotel management there.
(A) F: Wow, what a small world! May I meet her some day? (B) F: So, which hotel does she work for? Is she a manager there already? (C) F: Oh, really? As a travel agent, does your sister serve in the your company? (D) F: I'm sorry, I don't understand. Could you say it again?
A