Which phrase clearly establishes the authority of federal law over state law?

National Supremacy clearly establishes the authority of federal law over state law

Explanation:

National supremacy is a term used to depict the U.S.

Constitution's position over laws made by the states that might be inconsistent with the objectives held by the country's authors when they were making the new government in 1787.

Under the Constitution, government law is the incomparable tradition that must be adhered to.

b is the answer i am assuming