Question

Which invention made large-scale slave labor much more profitable in the American south?

A.) mechanical reaper
B.) cotton gin
C.) steel plow
D.) grain elevator

Answer 1

Answer is C because I have did this before so in this case the answer is C

Answer 2

I think what you would have to consider would be which helped continue the use of slave labor rather than machinery. I would say either B the cotton gin or C the steel plow.