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:
F: Would you like to come mountain climbing with us? ,M: That's the last thing in the world I ever want to do.
(A) F: Since you haven't travel around the world, why don't you travel to Japan with us? (B) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) F: Alright, since you don't want to go skiing with us, we'll leave you alone. (D) F: Well, since you don't want to go climbing the mountain, we'll go without you.

Ex Output:
D


Ex Input:
M: Call your mom and tell her that we will be home later than expected. ,F: Um, we are in the tunnel now and the mobile phones' signals are dead.
(A) M: How do you know that your mom is in the area with poor signal reception? We are not in the tunnel now. (B) M: Can't you make a phone to your mom now, telling her that we will be home earlier? (C) M: Excuse me, could you repeat the question? (D) M: Do you think we should tell mom that someone is dead, even though the mobile phones' signals are good?

Ex Output:
C


Ex Input:
F: I'm not sure about this soup, Carl. It has no taste. ,M: No, I don't think so, Maria. It tastes fine to me. We've been to this place before and I don't feel the soup taste any different. ,F: Well, I still think it needs something. Salt? ,M: No, certainly not. What about pepper? If anything, I think it could use a little more of that.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: Yes, you are right. This cake needs some onions. (C) F: Thanks for your advice. I will add some pepper to the soup. (D) F: You are right. The cake will taste better if I add some pepper.

Ex Output:

C