The 10th Amendment says, "The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people.” This means that
A
states can only make laws about things that are mentioned in the Constitution
B
states do not have to follow the US Constitution
С
states can decide whether or not to adopt the Bill of Rights
D
states can make their own laws, as long as the laws don't violate the Constitution