阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳选项

    Peter is a middle school student. His school is very small. There are many trees in the school. Students take(乘坐) the school bus to school.

    Peter is thirteen years old. He's in Class One, Grade Seven. There are eleven boys and nine girls in his class. Linda is Peter's sister. She is eleven years old. She goes to the same school with Peter. She is in Class One, Grade Four. Peter's father goes to the school with Peter and Linda from Monday to Friday. Why(为什么)?Becausehe is the school bus driver!