This type of federalism defines a division between the national and state powers and responsibilities. each level of government therefore has its own sphere of influence, separate and distinct:

Dual Federalism

Explanation:

Dual Federalism is a type of federalism where each level of government has its own sphere of influence, separate and distinct. In a dual federalism, the federal and state share constitutional power.

idk but found this on google

"the kansas-nebraska act allowed each territory to decide the issue of slavery on the basis of popular sovereignty. kansas with slavery would violate the missouri compromise, which had kept the union from falling apart for the last thirty-four years. the missouri compromise had prevented this from happening since 1820."

the right answer is a