It is controvertial because it is a flag that is know to be paired with raceism
<span>The </span>13th amendment<span>, which formally abolished slavery in the United States, </span>passed<span> the Senate on April 8, 1864, and the House on January 31, 1865.</span>
D. Imperialism
Is the correct answer
Souths economy depended on mostly cotton. when the cotton gen fastened the process, they mass produced it. and made lots of money than before. such was depended on agriculture while north had factories. yet cottons still didn't make that much as industries