A state statute requires that all rapid transit vehicles, which operate as common carriers on the highways of the state, will be equipped with seat belts for passengers. The Bluebird Lines, an interstate carrier, challenges the validity of the statute and the right of the state to demand this criteria. On what constitutional basis would Bluebird Lines, best challenge the statute?

Select one:

A. Violation of the due process clause of the Fourteenth Amendment.

B. Unreasonable burden on interstate commerce.

C. Difficulty of enforcement.

D. Violation of the equal protections clause of the Fourteenth Amendment.