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Serf
I think the answer is A. not sure though....
Cotton transformed the United States, making fertile land in the Deep South, from Georgia to Texas, extraordinarily valuable. ... This created a Second Middle Passage, the second largest forced migration in America's history. To feed “King Cotton,” more than a million African Americans were carried off into the Deep South.
I think answer is B
<span>The Soviets did not uphold their post war commitments</span>