A、A driver. B、A detective. C、A policeman. D、A technician. C由女士的话可知，她和别人撞车了，而男士询问女士撞车发生的具体时间、地点及原因，可见男士是在处理一起交通事故，可知男士很可能是一名交通警察，

M: I hope you will spend New Year’s Eve with us.
W: I’d love to, but Sunny and I will go to Hong Kong for shopping. We’ll buy you some gifts.
Q: What do we learn from this conversation?

M: Now, please tell me exactly when, where and how this happened.
W: Well, I stopped immediately when the light turned yellow, but this man bumped into me from behind.
Q: Who is probably the man?