The correct answer is:
c.State and federal governments share power, but the federal government is supreme.
Explanation:
The administration of the United States of America is a FEDERATION. An organization is a system of government where the only members (states) and national or overarching body (federal government) distribute power and efficiency. Federalism is a system of government in which power is shared between a national (federal) government and many state governments. In the United States, the U.S. Constitution gives special powers to the federal government, other powers to the state governments, and though other powers to both.