The Civil War issue regarding southerners' concerns before the war.
The correct answer is: c. Both a. and b.
Before the Civil War, many southerners both feared a slave revolt and believed that the government in Washington made too many laws on matters better left to the states. The issue of slavery, states' rights, and the division between the North and South were critical factors that led to the Civil War.
Examples:
https://brainly.com/question/38078737