Question

what section of the u.s. constitution prohibits states from violating or interfering with federal laws?
commerce clause
necessary and proper clause
supremacy clause
10th amendment

Explanation:

The Supremacy Clause (Article VI, Clause 2) of the U.S. Constitution establishes that federal laws and treaties are the supreme law of the land, prohibiting states from violating or interfering with them. The Commerce Clause regulates interstate and foreign - commerce, the Necessary and Proper Clause gives Congress power to make laws needed to execute its powers, and the 10th Amendment reserves powers not delegated to the United States by the Constitution, nor prohibited by it to the States, to the States respectively, or to the people.

Answer:

C. Supremacy Clause