C. Combing ones hair
Because it’s like when you rub a ballon on your hair and your hair becomes static. And because if you look at the other options and do process of elimination you would get C.
A- that’s just electricity from a plug in
B- same thing as A
And
D- that’s with a engine and gas
(Hopefully this helped.)
And from google “Using plastic combs and brushes on your hair can cause static electricity, much like that old trick you did as a kid of making your hair stand up by rubbing a plastic balloon on it.”