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1 vote
Which invention made large-scale slave labor much more profitable in the American South? A. grain elevator B. cotton gin C. mechanical reaper D. steel plow

User Mschmoock
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2 Answers

5 votes

the cotton gin is the invention so b is your answer

User Sven Driemecker
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4 votes
It is cotton they were really used in those times
User Gberger
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