If one state passes a law or issues a court decision, what must all the other states do?


A. The Tenth Amendment states that powers not delegated to the United States by the Constitution are reserved to the states.


B. They must support that law or court decision, as required by the full faith and credit clause of the U.S. Constitution.


C. The states have sovereign power and can choose to either support or ignore the law or decision.


D. The federal judicial system handles conflicts among the states.