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 need to take some medicine. I think I got a cold. ,F: Well, you might want to drink some water first. I haven't seen you have anything to drink all day even while we were having lunch.
(A) M: You are right, I  should eat all this food first. (B) M: I only like apple juice, warm water is not suitable for me. (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: I won't take any medicine because it dose no good for my cold.

Output: C


Input: Consider Input: F: Welcome to our program. Today we have invited Fred Watson, an expert on the environment to talk to us.
(A) M: Nice to meet you guys. Let' s talk about environmental problems today. (B) M: Hello, everyone! My name is Bob, today, let' s talk about modern technology. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: Thanks, I' glad to be your studio. Today, our topic is about industrial development.

Output: A


Input: Consider Input: M: Helen, I want to have a word with you. ,F: Is it about the appointment yesterday evening? Forget it. It doesn't really matter. ,M: But I must say sorry to you. I didn't mean to break my word. I was about to leave home when my mother suddenly passed out. I took her to the hospital and looked after her all night. It was not until this morning that I remembered my date with you. ,F: Oh, I'm sorry to hear that. Is she OK now?
(A) M: My sister is fine now. I am so sorry that I didn't keep the appointment. (B) M: I didn’t hear you. Please could you tell me again? (C) M: She is OK now. I am so sorry that I forgot to call you that I couldn't go to the hospital. (D) M: She is OK. I am so sorry that I was too busy to go to the hospital with you yesterday.


Output: B