What is the primary right of a plaintiff in a motor vehicle accident?

"As far as its content is concerned, the primary right is simply the plaintiff's right to be free from the particular injury suffered. [Citation.] It must therefore be distinguished from the legal theory on which liability for that injury is premised: 'Even where there are multiple legal theories upon which recovery might be predicated, one injury gives rise to only one claim for relief.' [Citation.] The primary right must also be distinguished from the remedy sought: 'The violation of one primary right constitutes a single cause of action, though it may entitle the injured party to many forms of relief, and the relief is not to be confounded with the cause of action, one not being determinative of the other.' [Citation.]" (Crowley v. Katleman (1994) 8 Cal.4th 666, 681-682.)