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.

Example Input: M: Hey, I just finished reading a great book. It's about Steve Jobs. ,F: Really? But there are so many books about him now. What makes the one you read so special? ,M: Well, the one I read is by Walter Isaacson. It's different from the others, because Steve Jobs himself asked Isaacson to write it. ,F: Uhm, were they friends or something? ,M: Well, they knew each other well because Isaacson used to work for Time magazine in the 1980s. And he wrote about Apple products. But it was mostly a business relationship I think.
(A) F: Why did he offer to write about Steve Jobs himself? (B) F: Oh, the writer was a close friend of Steve Jobs'. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Oh, the writer used to write about Apple products.
Example Output: D

Example Input: F: Good morning, young man. What's your name, please? ,M: My name is Zhang Ming. I'm 12 years old now. Can you introduce your doctors? ,F: We doctors in this hospital fly to different poor places. People with eye problems can come to us. We give medicine to the poor or do operations on them free. ,M: I started to have problems with my eyes when I was 7. Now I can't see things clearly. Can you help me? ,F: Yes, of course. We'll try our best. ,M: My parents don't have enough money for the medicine or the operation. ,F: Don't worry. We get donations from all over the world. You don't have to pay.
(A) M: Really? If I don't need to pay much, I'm willing to receive treatment right now. (B) M: I'm afraid that I couldn't pay a lot of money to treat my sister's eye problem. (C) M: I didn’t hear you. Please could you tell me again? (D) M: My sister will be very happy if she know she can cure her eye for free.
Example Output: C

Example Input: M: How was your doctors' appointment? ,F: It was fine. He says that I'm pretty healthy overall. But I told him that I have trouble sleeping sometimes and he offered me sleeping pills. ,M: Did you take them? ,F: No, I'm afraid they're harmful to my health. ,M: So what are you going to do? ,F: I think I will schedule an appointment with the psychologist. Maybe I can't sleep because I have too much anxiety. Talking to someone may help.
(A) M: You can talk to me. You are too anxious to sleep. (B) M: You can talk to me. Your headache may be the only reason for your anxiety. (C) M: You can talk to me. You have too much work to do. So, you may feel tiring and fall asleep soon. (D) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please?
Example Output:
A