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.

Ex Input:
M: I'm hungry, do you want to go to the burger shop and get something to eat? ,F: Sure, but I need to stop at the drug store first. I need some vitamins.
(A) M: That's okay. I can wait. Please buy me soft drinks. (B) M: Excuse me, could you repeat the question? (C) M: That's okay. I can wait. Thanks for buying me some breads. I don't eat burgers any more. (D) M: That's okay. I can wait. Thanks for buying me some burgers.

Ex Output:
D


Ex Input:
M: Is everything ready for the meeting? ,F: Almost. I'm done with the tables and chairs and I've set up microphones as well. The only thing left to do is put the cups on the table.
(A) M: Hurry up and set the cups! (B) M: You have to set up the tables and chairs now. (C) M: You have put the cups in place. Then it's time to mop the floor. (D) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that?

Ex Output:
A


Ex Input:
M: Hi, Jennie. How do you like the university? ,F: Hello, Bob. I like it very much. ,M: Have you started your classes yet? ,F: I have been to two lectures, chemistry and history.
(A) M: Ah! You've taken four classes, but why haven't you taken history? (B) M: So you've taken history and physics? (C) M: Why don't you like university after only three classes? (D) M: I am really sorry, I did not catch that. Would you slow down, please?

Ex Output:

D