The supremacy clause sets up a hierarchy that allows federalism to operate. What is correct hierarchy from greatest to least of the following?
1. state laws
2. acts and treaties of Congress
3. city and county ordinances
4. the Constitution
5. state constitutions
A. 4, 2, 5, 1, 3
B. 1, 4, 5, 3, 2
C. 4, 5, 2, 3, 1
D. 5, 3, 1, 2, 4