Given the task definition and input, reply with output. In this task, you will be shown a conversation and a question. You need to answer the question and choose the correct option based on the conversation. "W" and "M" in the conversations stand for "woman" and "man".

W: At what time will the game start? M: It's scheduled to begin at ten o'clock, and now my watch says 9:45. It won't be long., Question: How long will they have to wait before the game start? (A) 30 minutes. (B) 20 minutes. (C) 15 minutes.
(C) 15 minutes.