Answer:
C. Federal law is always superior to state law
Step-by-step explanation:
This part of the Constitution is found in Article VI, Paragraph 2, and is often referred to as the Supremacy Clause. Such fragment establishes that all federal laws are the supreme Law of the Land and therefore all states, federal officers and judges are bound by it, meaning that in case of a conflict between state and federal laws, the federal laws is the one that shall prevail.