A、She doesn’t have a bike. B、The traffic is heavy this morning. C、She got up too late this morning. D、Her alarm clock failed to

Young teacher: I’m sorry, I’m late again. The traffic is terrible.
Mrs. Wilson: Well, that’s OK. But the schoolmaster wants to see you. He asked about you this morning.
Young teacher: Oh, that’s too bad. What can I say to him? Any suggestions?
Mrs. Wilson: Well, perhaps you have to explain why you were not in the office this morning.
Young teacher: OK. I am going to see him now.
Mrs. Wilson: You’d better go and see him after 10:00. He is having a meeting now.
Young teacher: To tell the truth, Mrs. Wilson, I don’t want to be late. But you see, the traffic is always so heavy. How can I not be late?
Mrs. Wilson: Why don’t you buy a bike? That would be faster.
Young teacher: Well, don’t you think it’s too dangerous to fide a bike in this city? My father always says that all the bikes in the street seem to be flying towards you.
Mrs. Wilson: Then, I’m afraid you have to get up early every day.
Young teacher: I guess so.