I think a correct way of saying this sentence would be: Some of the people just do not know how to drive right. or Some of the people do not know how to drive right/correctly.
Explanation:
when I finish here; between the two independent clauses linked by either a conjunction adverb or a traditional expression
Tessie draws the paper with the black mark on it and is stoned to death. She is excited about the lottery and fully willing to participate every year, but when her family's name is drawn, she protests that the lottery isn't fair. ... Mr. Summers - The man who conducts the lottery.
Just going off on the question I would say A
But it could also be C....hope that helps