Under cooperative federalism, state and local governments should control domestic policy states have implicit or sole authority of governments over all domestic policy the national government is the dominant authority in all policy all three levels of government share authority over policy

The correct answer should be all three levels of government share authority over policy

In cooperative federalism all legislature made by all three levels is equal and all three work together in making policies. It's unlike the dual federalism where they both make the same legislature, and unlike the basic tyrannical federalism where a nation-wide government decides everything for everyone.

Its either b or c   i'm leaning towards b though i've heard of them during that time period