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: John, when was Tom born? ,M: He was born on May seventh 1982. He is 4 years older than I am, but our birthdays are on the same day.
(A) F: Oh, you mean you were born in 1982 and you are 4 years older than Tom? (B) F: I can't believe that you were born in 1986 and you are 4 years older than Tom. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F: Since you are 4 years older than Tom, so you must have been born in 1978.

Ex Output:
C


Ex Input:
F: Hello Mr.Johnson, you wanted to talk to me? ,M: Uh, yeah, come on in! I'm glad you were able to make it in such a short time. I was worried I wouldn't get a chance to talk with you before the weekend. ,F: Luckily, I checked my email and got your message before leaving campus for the evening. I thought it would be good to drop by and I'm surprised you're here at such a late hour. ,M: Oh, I usually am on Fridays. I like to review the weekly writings. My students turn in before I leave for the seaside on weekends. ,F: To be frank, I'm a little bit nervous. ,M: Don't be nervous. Actually, it's very good news. ,F: Oh, what is it? ,M: I received a letter from the National Youth Fund. It says you have won a scholarship for your further studies.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: You mean I got some financial aid from National Youth Fund. How lucky I am! (C) F: The UN has sent me some financial aid. Are you serious? I can't believe it. (D) F: I have been offered a job by a National Youth Fund. So as long as I graduate, I can earn money myself.

Ex Output:
B


Ex Input:
M: I wonder how we will ever get the sand out of our suitcases. ,F: We would never have gotten any sand in them. If we hadn't had our vacation at the beach. Next year let's go to the mountains or just have a quiet vacation on the farm.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: But our job at the seaside is really nice. (C) M: But our vacation at the seaside was really nice. (D) M: Could you remember vacation on the farm this year? That's unforgettable.

Ex Output:

C