Who is responsible for updating the V5C document?

Answer: B — The registered keeper

Option A, the DVLA, is incorrect because while they handle the registration process and issuing of the V5C document, they do not update it once it has been issued. Option C, the insurance company, is incorrect because they do not have the authority to update the V5C document. Their role is to provide insurance coverage for the vehicle. Option D, the previous owner, is incorrect because once a vehicle has been sold, the previous owner is no longer responsible for updating the V5C document. The new registered keeper becomes responsible for keeping it updated.