Questions 22 to 25 are based on the conversation you have just heard. Why was the man late

A．The man thought the paper was easy.
B．They both had a hard time writing the paper.
C．The woman thought the assignment was easy.
D．Neither of them has finished the paper yet.

A．They will tell drivers the accident on the road ahead.
B．They will remind drivers if there is only a little oil left.
C．They will help drivers sheer off in the opposite direction.
D．They will give an alarm if drivers get too close to other cars.