which is not a run on sentence

Something happened to the battery and the car wouldn't start.
a.Something happened to the battery; and the car wouldn't start.
b.Something happened to the battery and the car wouldn't start.
c.Something happened to the battery, and the car wouldn't start.
d.Something happened to the battery, and, the car wouldn't start.

Respuesta :

Answer:

C

Explanation:

a has an unneeded semicolon, b doesnt have a coma before 'and', and d has an unnecessary coma after 'and'.