Which event played the greatest role in creating these conditions in the south during the antebellum era?

a. the northwest ordinance of 1789

b. the dred scott decision of 1857

c. the secession of south carolina in 1860

d. the invention of the cotton gin by eli whitney in 1793?

d.the invention of the cotton gin by eli whitney in 1793.

Explanation:

The antebellum era was a period of the history of Southern United States that went from the late 18th century to the Civil War. This already eliminates options b and c.

Cotton plantations, which relied on slavery, led to the economic growth of the south.

So the correct answer is:

d.the invention of the cotton gin by eli whitney in 1793.

it was georgia from union general william t. sherman. hope it !

answer; i believe that the correct answer is (agriculture);