21. Palmer goes to a truck dealership and asks for a truck capable of handling a 5000 pound load. He makes it clear that it is up to the salesman to select an appropriate truck. Without saying anything about the truck's load-carrying capacity, the salesman selects a certain truck for Palmer. Relying on the salesman's choice, Palmer buys the truck in question. However, while the truck Palmer buys is mechanically sound, it only can handle a 2500 pound load. Palmer wants to sue the dealership because he didn't get the truck he desired. Which of the following product liability theories gives Palmer his best chance of recovery?

Express warranty.

Implied warranty of fitness.

Implied warranty of merchantability.

Section 402A.