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: F: Cindy, how are you getting along with the translation work? ,M: I have written and rewritten so much that I don't know if I'll ever get it finished.
(A) F: Don't be discouraged. Your translation can be done well. (B) F: I'm sorry, I don't understand. Could you say it again? (C) F: You are so satisfied with your translation work, right? (D) F: Don't feel so sad about that your written work is not good enough.
Example Output: A

Example Input: F: Is it really all you can eat for only $12.50? That price is not bad.
(A) M: It is so expensive for this amount of food. (B) M: The price of food in our school is too expansive. (C) M: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (D) M: The kind of food is so special for my mom.
Example Output: C

Example Input: F: May I help you? ,M: Yes, I'd like to take a one day sightseeing tour around town and I particularly want to visit the British Museum and the Tower of London. Do you have any tours that include both of them? ,F: Yes, this one does. You visit the tower and Westminster Abbey in the morning. Right after lunch, the tour takes a stop at Saint Pauls. Then the rest of the afternoon is spent at the museum. ,M: How long does the tour take? ,F: About 7 hours. Where are you staying, by the way? ,M: At the Hyde Park Hotel. ,F: Let's see. The bus stops there at 9:50. You should be back by 5:30 in the afternoon. ,M: What is the cost of the tour? ,F: It's 30 pounds including lunch. ,M: Are there any Chinese speaking guides? My friend here can understand only a little English. ,F: No problem. Besides English speaking guides, we also have Chinese speaking guides and French speaking guides.
(A) M: Alright, I'll choose English guides, my friend and I can both understand English. (B) M: Well, I think I'll choose French guides for my one week's sightseeing. (C) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) M: That's great, I think I am going to choose Chinese speaking guides.
Example Output:
D