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: Can I help you? ,M: Oh, I'm just looking, thanks. Well, actually, I'm looking for something for my sister. ,F: And what exactly are you looking for? ,M: I don't really know. A dress? ,F: Right. Well, what color does your sister usually wear? ,M: Well. ,F: OK, what color are her eyes? ,M: Green. ,F: OK, purple usually suits people with green eyes. ,M: Oh, great. Purple is fine. ,F: Now, what size is she? ,M: Uhm, well, she isn't very big, but she's not particularly thin, either. ,F: That'll be a medium then. Well, we have this rather nice silk evening dress here. ,M: Good. I'll take it. How much is it? ,F: $70. 00, sir. How would you like to pay? ,M: $70. 00? Ah, by credit card, please. ,F: Fine, if you could just sign... ,M: Here you are. Goodbye. ,F: Just a minute, sir. Here's your receipt. ,M: Oh, yes. Emm, can she exchange it if it doesn't fit her?
(A) F: Sure. You can exchange as long as you have the receipt. (B) F: I didn’t hear you. Please could you tell me again? (C) F: Oh, you can pay by anything for the shirt, like cash, credit card or check. (D) F: Sorry. We can't exchange the dress you paid by check.

A