The correct answer is D. The cotton gin increased cotton production. - Slavery increased in the South.
Explanation
At the end of the 18th century, the cotton gin was created, a machine created with the utility of separating natural residues adhered to cotton fibers quickly and easily. One of the consequences of its creation was the increase in slavery because this machine allowed the landowners of the southern United States to easily and easily increase their cotton production. Therefore, they increased the number of slaves to pick larger amounts of cotton. This caused that slavery was one of the pillars of the economy of the south reason why the landowners were opposed of radical form to the abolition of the same. So the correct answer is D.
