Which of the following BEST shows how the amendment process reflects the concept of federalism?
A. Amending the Constitution requires a two-thirds vote in both houses of Congress.
B. Amending the Constitution requires ratification by three-fourths of the State legislatures.
C. Amending the Constitution requires three-fourths of the popular vote.
D. Amending the Constitution requires involvement by both the national and State levels of government.
