On a challenge to a provision in a state constitution that conflicts with a provision in the U.S. Constitution

A) neither provision will be enforced.
B) both provisions will be enforced.
C) the state provision will be enforced only within that state's borders.
D) the state provision will not be enforced.

The Supremacy Clause of the U.S. Constitution establishes that the federal constitution, and federal law generally, take precedence over state laws and even state constitutions. Therefore, if a state constitution has a provision that conflicts with the U.S. Constitution, the state provision will not be enforced.