Answer:
C. internal conflicts over women's rights
Explanation:
The main reason for the US Civil War was slavery. During that time, the Southern state’s economy was based on cotton plantations. The US was responsible for most of the world cotton which meant that farms in Souther US were filled with slaves. This was the main point of the Southern economy.
At the same time, the Northern states in the US were industrialized. Although they also had profited from the Southern farms, they defended the end of slavery and believed that slavery was not needed for the economy.
When the US bought Louisiana and the expansion westward started this discussion got even more furious, Southern States defended that these new territories should be allowed to have slavery, at the same time the Northern States defended that if these new territories had slavery, the balance between slave-free and pro-slavery states would be destroyed.
All of these points were reasons for the Civil War. Women’s rights discussion came after Abolition since many women started to become politically active with the abolitionist movement which eventually transformed into the women’s rights movement.