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: How was your trip to Beijing? ,M: Tiring. There were too many people there. I can hardly find any room to move my arms on the train. Anyhow, I find Beijing a beautiful city.
(A) F: You were very lucky to find a train which was not crowded. (B) F: You went to Beijing by train? That must be very long time. (C) F: You went to Beijing by plane? How was your flight? (D) F: I am afraid I did not quite catch what you were saying. Please repeat it.

B