Years of declining profits forced the auto industry to lobby congress for protection. Congress finding a auto crisis pass the american content act. Under the act 95% of all parts of the cars sold in the US have to be made by a US domestic part manufacturer.

Which provision or power best supports congresses power to pass the act?

A. Supremacy power from Articl VI

B. Interstate Commerce power

C. General Welfare power

D. All of the above