How does cooperative federalism work in the united states?

Cooperative federalism is also called Marble-cake federalism. It is type of governance in which the state and local government work together  to solve common problems. They work together for framing policies. This federalism became prominent in Us during the New Deal of 1930's. During this period many federal programs were created by the government which were administered by the states for alleviating the effects of Great depression. In cooperative federalism the national government influences the policies of the state government by funding the programs. e.g The national government tries to maintain the highways by providing grants in aid to the states. In other cases the central government gives more control to the states over the program.

the answer would be choice c, cave paintings.

the real answer is b