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: Excuse me, did you find a green wool scarf? I was here about 5 minutes ago. ,F: I can look. ,M: Thanks. ,F: But I only have a gray scarf here. Sorry. Where were you in the store, Sir? ,M: Well, first I was in the shoe section. Then I looked at sweaters and jackets. ,F: Just a minute. Hi. It's Sue at the register upstairs. Did you find a green wool scarf? OK. You're in luck! They have your scarf in the shoe section. ,M: Oh, what a relief! Thanks for your help. ,F: My pleasure. ,M: Oh, it's 4:30. Is there a subway station near here? ,F: Yes, there's one down there. Toronto has a good public traffic system. There are buses, street cars and trains to different parts of the city and areas outside the city.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: OK. I can go home by streetcar. Thanks for your help. You are a good teacher. (C) M: Thanks. I will go to work by underground. It must be crowded in the morning. (D) M: OK, thank you. You are so helpful. I will take the underground to go back.

D