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: Now, please tell me something about yourself. ,M: My name is Henry Smith. I left school for months ago. I got A's in nearly every subject. ,F: Then why didn't you go to college? ,M: I wanted to. But I couldn't afford the costs. My father lost his job half a year ago. My mother makes too little money. My younger brother and sister are still studying in high school. I must work to help support my family.
(A) F: I didn't hear you. Please could you tell me again? (B) F: So there are 4 people in your family, right? (C) F: So there are 5 people in your family, and your brother and sister are still in middle school, right? (D) F: Wow, you have 6 people in your family.

Ex Output:
A

Ex Input:
M: I can't stand this heat. I can't get my attention to studying for the midterm exam. I guess I'll have to go to the library this afternoon. ,F: I don't blame you. This dormitory doesn't have air conditioning. I can't study, either. My roommate and I are thinking about moving out to the other dorm, or an apartment that has air conditioning. ,M: Oh, I thought about moving to. But if I want to live in an apartment, I have to pay a lot of money for electricity. Do you know an air conditioner is cheaper today than it was 10 years ago? On the other hand, electricity is a lot more expensive today. ,F: I didn't know that. How much do we have to pay for the electricity? 5 years ago, it was possible to run an air conditioner 24 hours a day for mere $20 a month. Today, the same air conditioner in the same house cost more than $40 a month.
(A) M: Excuse me, could you repeat the question? (B) M: That means $35 will cost to run an air conditioner 24 hours a day for 2 months 5 years ago. (C) M: Today, as five years ago, running an air conditioners 24 hours a day cost $20 for 2 months. (D) M: Electricity is cheaper today. 5 years ago, running an air conditioners 24 hours a day cost $40 for 2 months.

Ex Output:
A

Ex Input:
F: When are you going to take your vacation? ,M: I've got a 10-day vacation starting from July twenty-fifth. ,F: Where are you going? ,M: To Hawaii. ,F: That sounds like a good place. Is your family going? ,M: Yes, we plan to climb the mountains, go fishing, swimming and windsurfing. Just to relax. My wife is taking a whole bunch of books to read. ,F: Your children must be all excited about it. ,M: Yes, they are. They're already crossing out days on the calendar. Are you going to Europe again this summer? ,F: No, not this time. We're going to visit some old friends in Egypt.
(A) M: That sounds fun! Egypt has lots of fun places. (B) M: China is a good choice for this summer. Next time maybe we can go to Egypt together in winter. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: A lot of people choose to visit the United States this summer. Guess you are one of them.

Ex Output:
A