Answer:
a. Carolina
Explanation:
It was the State of South Carolina who started the Civil war as their congressman and ruling class obtain most of their wealth through slave work in the field of african-americans
After Lincon was elected, and spoke about the equality of right between all people the state determinate that secession was the best way to preserve their status quo.
According to the numerbs of the time, Carolina had over 50% of the population living under slavery.
