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.

[EX Q]: M: Excuse me, I'm mailing this package to Japan. ,F: Alright. Fill out this form about the contents and value. Do you want to insure it? ,M: I don't think so. It's only some books. ,F: Are you sending it surface mail or airmail? ,M: Airmail, please. ,F: OK. That's $25. ,M: Here's $30. ,F: Alright. Here's your change.
(A) M: So, as I'm mailing this package to China, it's free and the change is $ 30? (B) M: So, it needs $25, and as I give you $30, the change is $ 5? Okay, I see. (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: You mean the change is just $ 5? But you say that's $20, and I give you $30!
[EX A]: B

[EX Q]: 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.
[EX A]: A

[EX Q]: M: Hi, what's up with you? ,F: Fine. ,M: What did you do today? ,F: I stayed at home for a whole day. ,M: Really? No good weather outside? What's the time now there? ,F: It's 10:00 pm. It rained for almost 2 weeks. The weather today is terrible, too. ,M: Oh. It's just before 9:00 am here and it's snowing outside. Have you received my gift? ,F: Yes, thank you. I really enjoyed the pictures you sent me. ,M: I am glad you like them. They were taken in Orange Park last month. It is a wonderful place and worth a visit. There are many kinds of stones and the ticket to it is free.
(A) F: I didn't hear you. Please could you tell me again? (B) F: Really? The photos you sent to me were taken in Orange Park last week? (C) F: OK, I see. It is not a wonderful place and nor worth a visit. But I want to say the stone you sent to me are very beautiful. (D) F: Wow, it sounds great. And I really love the photos you sent to me.
[EX A]:
D