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.

Input: Consider 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.

Output: A


Input: Consider Input: M: Lucy, I'm terribly sorry to hear your mother was seriously ill. ,F: Don't worry so much, grampa. She is much better now.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: Is she still terribly ill? Sad for her. (C) M: After my operation, your mother is better now. Don't worry. (D) M: Good to hear that your mother has turned much better.

Output: D


Input: Consider Input: M: Ashley, will you deliver this document to Green Mama's by 3 o'clock or should I ask Rebecca? ,F: I'm sorry, Peter. I am scheduled to meet a customer at 2 o'clock and I don't know how long the meeting will last. Also, Rebecca won't be back until 4:00. ,M: What should I do? Victor just started working here yesterday. So he isn't familiar with things around here. ,F: Why don't you ask him? I'll draw a map and explain to him how to get there. ,M: OK, thanks
(A) F: You are welcome. I am sure Ashley will be back in time. (B) F: You are welcome. I am sure Victor will deliver the document in time. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Victor can help you for he has been working for years and is familiar with things around.


Output: B