Actually, the categories what are included as the exclusive powers of the Federal Government include those that are expressed or enumerated, implied power, and inherent power, except for RESERVED POWER. This is the kind of power which is the opposite of expressed power. Hope this answer helps.
answer A the availability of raw materials
The answer is African Americans because the Civil Rights movement paved a way use for civil rights and liberties with their fights in the 60s, and it was led by Martin Luther King Jr. So I hope that help!
I believe c is the answer because the word it's is saying it is