Which amendment from the U.S. Bill of Rights established federalism as a major principle of the country's system of government?
A
Amendment 10: 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.
B
Amendment 2: A well-regulated militia being necessary to the security of a free state, the right of the people to keep and bear arms shall not be infringed.
C
Amendment 3: No soldier shall, in time of peace, be quartered in any house without the consent of the owner, nor in time of war but in a manner to be prescribed by law.
D
Amendment 8: Excessive bail shall not be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted.