they were followed to their cars and I did too句中“followed to”的意思?

they were followed to their cars and I did too句中“followed to”的意思?
本句出自一篇完形填空,我大概向大家描述下上下文：
一位妈妈带着她6岁的女儿逛超市,购物后遇大雨,本文作者旁观了以下这一幕：小女孩建议她妈妈,她们两人不等到雨停而冒雨冲出去...
然后便到了上面这句话：
They(母女俩）got soaked,but soon they were followed to their cars and I（作者） did too.
这里followed（答案）这一空,原来的选项如下：
A:led
B：followed
C:rushed
D:sent
请问各位大侠,这里如果是选followed意思该如何理解；如不是的话那是应该选那个,意思又该如何.