Which of the following is NOT the correct description about the Hogwarts Express?

A.The train is pulled by a scarlet steam locomotive.

B.There is no dining service, but a witch pushes a tea trolley through the train midway through the trip.

C.There is no separate car on the train for Hogwarts Prefects.

D.There are usually no adults aboard the Hogwarts Express.

正确答案： There is no separate car on the train for Hogwarts Prefects.