W: Did you see the large crowd on the street corner when you came to school this morning? M: Yes, I did. What was that all about? W: A serious accident happened. A drunk driver hit a bus full of passengers. M: Oh dear! A lot of people must have been hurt or even killed? W: You are right! All the injured people were taken to the hospital immediately. M: I hope so. Drivers must be careful, especially during rush hour. W: I agree with you. We will all be safe if everyone obeys the traffic rules., Question: What most likely caused the accident? (A) The bad weather. (B) The drunk driver. (C) A careless passer-by.
(B) The drunk driver.