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: Excuse me, I have seen the camera advertised online for 150 pounds? ,M: Well, we're selling it for 180 pounds. It usually sells for 200 pounds, but we have a special offer now.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: 180 pounds is the original price but I'll buy this camera. (C) F: Great! 180 pounds, right? I'll buy one. (D) F: I'll buy it! I can save 20 pounds as the camera is 200 pounds now.

C