What is federalism? A system that makes the national government weak so that state governments can be strong

A system that gives the national government complete and absolute power

A system that divides power between the state and national governments

The last option is the answer.

Federalism is a mixed or compound mode of government that combines a general government with regional governments in a single political system. Its distinctive feature, first embodied in the Constitution of the United States of 1789, is a relationship of parity between the two levels of government established.