Answer:
slavery
Explanation:
Just before the Civil War, there were 19 free states and 15 slave states. During the war, slavery was abolished in some of these jurisdictions, and the Thirteenth Amendment to the United States Constitution, ratified in December 1865, finally abolished slavery throughout the United States.
One of the main ways in which the United States attempted to strengthen its ties and influence with the nations of Latin America was by declaring that further attempts to colonize this area by Europeans would be met with resistance by the US--as embodied in the Monroe Doctrine.
Because white people did not want black sitting next to them on a bus and not share water fountain. hope it helps u :)
I believe the answer is B) Jimmy Carter