Explain how the Supreme Courts interpretations of
the commerce clause have
influenced the national
government's power

Explanation:

Commerce clause, provision of the U.S. Constitution (Article I, Section 8) that authorizes Congress “to regulate Commerce with foreign Nations, and among the several States, and with Indian Tribes.”  The commerce clause has traditionally been interpreted both as a grant of positive authority to Congress and as an implied prohibition of state laws and regulations that interfere with or discriminate against interstate commerce also known as the dormant commerce clause

i believe the answer is c