Answer:
Federalism limits government by creating two sovereign powers—the national government and state governments—thereby restraining the influence of both. Separation of powers imposes internal limits by dividing government against itself, giving different branches separate functions and forcing them to share power.
I would go with B. Authority is based on respect and precedence, but they don't actually have the power to use it.
C!!!!!!!!!!!! BOTH A AND B
Freed slaves from the U.S.