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: Here we go. Now, Terry, you were saying that you went from Vancouver to San Diego. How many days did that take? ,M: Um, the total trip took 42 days but that included one day on the bus up and then one day on the bus back.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: It just took you 42 days from New York to San Diego? That's amazing. (C) F: It is worthy for you to travel in China for 40 days, it a wonderful country. (D) F: The 36 days stay in Japan must be interesting, right? Tell me more about that.

Ex Output:
A


Ex Input:
F: How can you be shouting at your grandpa? You can't be so rude! ,M: No, I don't want to be rude to him, but I had to shout so that he could hear me. My grandpa has something wrong with his ears. He doesn't hear well. ,F: I'm sorry. I misunderstood you. Your grandpa looks kind. ,M: Yes, he is kind to everybody in our small town. So we all respect him. ,F: He looks quite old now. He must be in his seventies, right? ,M: Yes, he is 75 years old this year. ,F: Though he looks so old, he is still in good health. ,M: Yes, of course, he gets up early every morning and does some exercise in our garden. That's why he is still in good health. ,F: How's your granny? Is she still in good health like your grandfather? ,M: She was 5 years younger than my grandfather, but she died of heart disease 3 years ago.
(A) F: Sorry to know your grandmother passed away this year at the age of 75. (B) F: Excuse me, could you repeat the question? (C) F: Oh, I'm sorry to hear that your grandmother died in a quite young age of 67. (D) F: I feel sorry. As she left at the age of 65 last year, you must miss her a lot.

Ex Output:
C


Ex Input:
M: Maybe it was the fish or meat we ate. ,F: Yes, it might have been. ,M: Or the soup. ,F: No, it couldn't have been the soup because I didn't have any.
(A) M: Let's stop talking about the division of housework. We have already had a clear division. (B) M: You had the soup, so the cause must be the it. (C) M: Excuse me, could you repeat the question? (D) M: Yes. The soup can't be the cause of our discomfort.

Ex Output:

D