Which verb form correctly completes the sentence?

as soon as she started the snowmobile again, kimberly it down the snowy trail.

a.
had ran

b.
ran

c.
running

d.
run

hello everyone my name is nevaeh, i know everyone needs in some way, shape, or form and i am willing to provide. i set up a google classroom where people can ask me questions and get on work. no question is a stupid question so do not be afraid to ask. i usually only focus on core subjects but if you ask i will with other specialized subjects. i can do essays all the way to power points : )

my google classroom is the code is 7hr2k4

~ use this opportunity to get more so you can thrive in the classroom

the right answer is b