What was the effect of cotton gin on slavery in the south?
A.) It has no significant effect on slaves or slavery
b.) It helped improve the slaves’ work conditions
C.) It made slavery more important to the south
d.) it reduced the need for slaves on plantations

I think D makes the most sense

Explanation: before the cotton gin, the slaves would remove cotton fibers from the seeds by hand, the gotten gin would remove the fibers more quickly, so the cotton gin made the whole process just go faster

richard nixon led the investigation that resulted in alger hiss being convicted of prejury.