You will be given a definition of a task first, then some input of the task.
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.

F: Why do you look so upset, have you been robbed? ,M: Well, I lost my wallet. ,F: That's horrible! Do you have much cash in it. ,M: Not much, but I have several cards in it. ,F: That's bad, do you need to borrow some money? ,M: No, thanks. I still have one card, I should have been more careful. ,F: You are always very careful. Don't blame yourself, it can happen to anyone.
(A) M: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (B) M: Thanks. Although I am careful, I still lost so much cash. (C) M: Thanks for saying I'm brave. I did fight with the robber. (D) M: Thanks. I don't know how I lost my wallet. I have always been careful.
Output:
D