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: The food looks really delicious. ,M: Sure it is, the wedding ceremony is wonderful, too. ,F: The bride looks so happy today. Are you a friend of Catherine's? ,M: Yes, we were in the same class at college. How about you? ,F: I'm a close friend of David's. How handsome he is in wedding clothes today. Well, may I have your name please? ,M: Jackson. I'm working in Chengdu, but I worked in Wuhan a year ago, and you? ,F: My name is Janet. I'm living in Mianyang. Ah, life in Chengdu, is it exciting?
(A) M: I've been working in Wuhan all the time. (B) M: Before working in Chengdu, I lived and worked in Mianyang. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: I've just moved in Chengdu this year.

Ex Output:
D


Ex Input:
M: I need to go to the bank. ,F: But they're all close today? ,M: Closed? Are you kidding? What is it? Some kind of holiday today?
(A) F: Hey, calm down. Just joking, The post office is right behind you. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: Hey, calm down. Just joking, there's no bank in the town. (D) F: Hey, calm down. Just joking, which bank do you want to go?

Ex Output:
D


Ex Input:
F: Take a look at this bread, honey. ,M: Oh, it's as hard as a rock. ,F: Did you buy it in the supermarket? ,M: No, I bought it in the grocery store this morning. Shall I throw it away? ,F: You'd better take it back.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: So you want me to throw away the stones I picked up in the street yesterday? (C) M: Ok, I'll take this bread back to the supermarket right away. (D) M: So you want me to give this bread back to Tom?

Ex Output:

C