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: Hello, this is Canon Camera Company in Beijing. Good morning. What can I do for you? ,M: Well, I am making this phone call to complain about a digital camera made by your company. ,F: What is the problem with it? ,M: The screen always goes black. ,F: Could you tell me how long this has been happening? ,M: It started a week ago. ,F: Then is it still under guarantee? ,M: Yes, I bought it only a month ago.
(A) F: So, it started two days ago and you just had the camera for a week, right? (B) F: Really? It is not under guarantee although you just had the camera half a month? (C) F: Okay, I see. You bought it only a month ago and it is still under guarantee. (D) F: I am really sorry, I did not catch that. Would you slow down, please?

C