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: Hello. This is the China Telephone Company. What can I do for you? ,F: Is this the Complaints Department? ,M: Yes, it is. ,F: I want to complain about the bill I received this month. I don't think I've made that many phone calls. Have their rates gone up? There must be a mistake in your billing.
(A) M: Why do you think the telephone bill was not accurate? How much is ti? (B) M: Yes, your telephone line was always busy. But you still got a low bill, that's strange. (C) M: Do you mean that the telephone call was not clear. As IT department, I'll help you to solve it. (D) M: I'm sorry, I didn't understand. Could you repeat a little louder, please?
Example Output: A

Example Input: M: Is everything ready for the meeting? ,F: Almost. I'm done with the tables and chairs and I've set up microphones as well. The only thing left to do is put the cups on the table.
(A) M: Hurry up and set the cups! (B) M: You have to set up the tables and chairs now. (C) M: You have put the cups in place. Then it's time to mop the floor. (D) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that?
Example Output: A

Example Input: F: Hello, Benson Software, you're through to customer service. ,M: Hello, this is Mike Williams from Smiths retailers. I'm phoning about the CD players you sent last week. Emm, I'm afraid you don't seem to have sent us enough. ,F: Oh, dear, I'm sorry about that. How many did you receive? ,M: Well, we received 50, but I'm pretty sure we ordered 150. ,F: Just a moment, I'll check your order. Well, according to our records, you seem to have ordered 50. ,M: Really? Oh, perhaps there's been a mistake. I feel certain we have ordered 150. ,F: Sorry about the misunderstanding. We'll get the extra 100 to you as soon as possible.
(A) M: Don't count wrong again. I received none, so it should be 50 this time. (B) M: 150 CD players, yes. I've got 20 before, so it'll be 150 more this time. (C) M: I didn't hear you. Please could you tell me again? (D) M: Great. Then I will be expecting for the rest 100 CD players. Thanks.
Example Output:
D