"This Constitution, and the laws of the United States . . . shall be the supreme law of the Land. ."
Article VI, Clause 2, of the U.S. Constitution
Which practice does this section of the Constitution forbid?
A . a presidential veto of a congressional bill
B . a Supreme Court ruling that declares that a law is unconstitutional
C . a state law about a topic that is not addressed in the Constitution
D . a state law which conflicts with the Constitution
E . a constitutional amendment that reverses an original section of the Constitution
Answer: D