What system of government is power shared between the national and regional governments

This system is known as Federalism.

Explanation:

This is a system of government in which power to govern is shared between the state government and national government, with state government flexing those powers without the interference of the national government.

Its concept represents a solution to functional problems within the issues of confederation which has failed to grant several notable powers to the national government.

answer; (d) none of the above;

answer: corporations and the wealthy cannot donate an excessive amount. (c)