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: Good morning. Can I help you, ma'am? ,F: Good morning, I'm looking for a coat for my younger sister. Her birthday is coming. I want to give her a good coat. Could you show me some? ,M: How about this one? ,F: It's nice. I like it! ,M: Which color do you want? ,F: Blue is her favorite color, but I think she looks better in yellow. Do you have a yellow one? ,M: Yes, we have. Which size would you like, medium or large? ,F: Neither, I would like a small. ,M: Na, I'm sorry. All the small yellow coats have just sold out. What about the green one? It looks nice, too. ,F: OK. How much is it? ,M: 170 UN. I can give you 10% off. ,F: Great! Here is 155 UN. Please keep the change.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: Thank you, and here is your green coat. (C) M: Thanks, and take the fancy yellow coat. (D) M: You are very lucky, we only have one blue left.

B