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: You are early today! Did you drive here? M: That's my last choice. Driving a car in rush hour is obviously not a good idea. W: So you took a bus? M: No, the subway instead. I found it the easiest and cheapest way for me to get to the office., Question: How did the man get to the office today? (A) By car. (B) By bus. (C) By subway.
(C) By subway.