which process does article v of the constitution describe?\namending the constitution\ngranting powers to…

Brief Explanations:

Article V of the U.S. Constitution details the procedures for amending the Constitution. It sets out two methods for proposing amendments (by Congress or a national convention) and two methods for ratifying them (by state legislatures or state ratifying conventions). The other options are incorrect: powers to states are in other articles (like the Tenth Amendment), contradicting federal law is not a valid process (supremacy clause), and returning enslaved persons was in Article IV (Fugitive Slave Clause, though later amended).

Answer:

amending the Constitution