Answer:
The primary purpose of the Supremacy Clause is It establishes that the federal constitution, and federal law generally, take precedence over state laws, and even state constitutions.
I believe the answer is D :)
I think a lot more people accept it and there attitude is more positive about it but there are still a lot of people (like me) who still think negatively about it.
Answer: for discrimination
A. Because that was the best way to find answers in that time period and even today