Answer:
B. Europeans captured tribes and sold them
Explanation:
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Delegated (sometimes called enumerated or expressed) powers are specifically granted to the federal government in Article I, Section 8 of the Constitution. This includes the power to coin money, to regulate commerce, to declare war, to raise and maintain armed forces, and to establish a Post Office.
The industrial revolution had a positive effect on the peoples life in all means
The group that committed violence against African American in the late 1800s and the early 1900s was white supremacists They are known by the KKK. Back in those days, they would lynch people by hanging.