The Doctrine of Dual Federalism Meant

The doctrine of dual federalism meant

A) an increase in the powers of the national government.
B) that the states and the federal government should each exercise authority as co-equal sovereign powers.
C) continued wartime expansion of the North's powers.
D) allowing the national government to regulate state actions affecting African Americans.
E) allowing the state and national governments to interfere in each other's areas of influence.