M: I was half an hour late for work today. There was just too much traffic. W: Yes, there really are too many cars on the road. More people need to carpool. M: Carpool? W: Yeah, you know, a group of people that ride to work together in one car. M: Hey, that's a good idea. How do you join a carpool? W: Well, there is a special phone number you can call. You leave a message with your address and phone number, and then someone calls you back with the names and phone numbers of other people in your area who want to carpool. M: That's really a great idea! How do you know so much about this carpool system, Nancy? W: Me? I called the number for the first time about five years ago. Carpooling is a great way to go to work., Question: Why was the man late for work? (A) He got up late. (B) He didn't catch the bus. (C) The traffic was heavy.
(C) The traffic was heavy.