Which statement best describes why slavery was one of the main causes of the civil war?
a. the south relied on slavery to run their factories and required the federal government to keep slavery going in both the north and the west.
b. the north encouraged many democrats to vote for abraham lincoln, which made the south feel that the election was rigged because lincoln vowed to end slavery by any means necessary, including war.
c. the south feared that their states’ rights were being violated and that the abolition of slavery would ruin the southern economy.
d. the north argued that popular sovereignty was the only way to decide the slavery issue and the south used the supreme court to force slavery into free states.