Answer:
C. to describe the relationship between federal and state powers
The primary purpose of the supremacy clause is :
C) To describe the relationship between federal and state powers.
The primary purpose of the supremacy clause is to describe the relationship between federal and state powers.
The Supremacy Clause of the Structure of the Joined together States, sets up that the Structure, government laws made compatible to it, and settlements made beneath its specialist, constitute the "incomparable Law of the Arrive", and in this way take need over any clashing state laws.
Thus, the correct answer is C.
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