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.

Example 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.
Example Output: D

Example Input: F: What do you think about this idea? Going for a picnic. ,M: Well, I'm not sure, I think it's a bit boring. I think barbecue on the beach would be more fun. ,F: Yes, I agree, but it's quite a lot of work. Someone has to stand here and cook all night. I think we should go to a restaurant instead. ,M: That's true, but it's quite expensive to go to a restaurant. ,F: Well, what about having a party at someone's house? We could order a pizza or just some hamburgers. ,M: I suppose so, I think a fancy dress party is a good idea. We could have a competition and decide who is wearing the best clothes.
(A) F: I agree with you. Having a picnic is the best idea. (B) F: Yeah. We should have a barbecue on the beach. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Yeah. We will have a fancy dress party and a barbecue.
Example Output: C

Example Input: F: Have you received Tom's invitation yet? ,M: No, I haven't. Invitation to What? ,F: Tom bought a new house last week. And he's going to hold a house warming party this weekend. ,M: Have you seen the house? ,F: Yes, it's very big. It has a large bedroom for him and his wife, and a bedroom for each of their four children. ,M: Is there a garden behind the house? ,F: Yes, you know. Tom loves gardening. Now he can finally grow all the different plants he loves. ,M: I'll go and check my email this afternoon. I must have just missed his invitation. I really look forward to seeing his new house.
(A) F: Yeah, if you send Tom an email this afternoon, we can visit his new three-bedroom house together. (B) F: Now that you have received Tom's invitation, you can indeed visit his new house this afternoon. (C) F: Haha, in that case, you really need to check if you have received Tom's invitation this afternoon. (D) F: I am really sorry, I did not catch that. Would you slow down, please?
Example Output:
C