Which document shows ownership of the vehicle?

Answer: B — A title

Ownership of a vehicle is proven by the title. The title is the official legal document issued by the state that names the owner and, if there’s a loan, lists the lienholder. It’s the primary proof of who owns the vehicle and who has the right to transfer it. Registration shows who is allowed to operate the vehicle and records that the vehicle is registered in a name, but it doesn’t prove ownership. An insurance card confirms insurance coverage, not ownership, and the owner’s manual is just a guide for the vehicle’s features and maintenance.