F: How do you usually go to work? By bus or by underground? ,M: Neither, I usually walk to the company. But today I took a taxi here because I got up late.
(A) F: So you went to work by bus today because you got up early, right? (B) F: Since you didn't get up late today, why did you take a taxi to work? (C) F: Excuse me, could you repeat the question? (D) F: You walked to work today because you got up early, didn't you?
C