Task: Dialogue Generation
Input (English): M: I'd like this letter to go by EMS. What's the rate? ,F: $7.65 for up to 2 pounds. ,M: Thank you. I hear the EMS is the next day service. Is that true? ,F: Well, it's true within America, but now you are in Beijing. The letter has to go through customs and get registered there. Anyway, it's faster and safer than ordinary mail. ,M: Then how long will it take to get to New York?
(A) F: EMS is next day service everywhere, so your letter can arrive Beijing tomorrow. (B) F: It will take two days to New York, and the rate is $7.65 for up to 3 pounds now. (C) F: It depends on the weather and transportation, but usually within five days. (D) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please?
Output (English): C