what does the supremacy clause do? it establishes a way to change the constitution. it establishes rights…

Brief Explanations:

The Supremacy Clause in the U.S. Constitution establishes that federal law is the supreme law of the land. It mainly deals with the relationships between states and the federal - government and among the states in the context of federal law. It does not establish a way to change the Constitution (that's the amendment process), nor does it directly establish rights for citizens in different states (Bill of Rights and other amendments do that more directly), nor does it establish a foundation for government (the Preamble and other parts of the Constitution do that). It is about state - federal and inter - state relationships in the context of federal law.

Answer:

It establishes relationships between states.