The driver ( ) at the crossroads as the traffic lights flashed

The driver ( ) at the crossroads as the traffic lights flashed red.
A、pulled off
B、pulled up
C、pulled round
D、pulled over
【正确答案】：B
【题目解析】：pull up 停车，句子含义是当交通灯转为红色时，司机在十字路口停车了。