What were the reasons behind the civil war, and what were the it's results?

Reason for Civil War

What led to the outbreak of the bloodiest conflict in the history of North America? A common explanation is that the Civil War was fought over the moral issue of slavery. In fact, it was the economics of slavery and political control of that system that was central to the conflict. A key issue was states' rights.

What were the two results of the Civil War?

With the defeat of the Southern Confederacy and the subsequent passage of the XIII, XIV, and XV amendments to the Constitution, the Civil War's lasting effects include abolishing the institution of slavery in America and firmly redefining the United States as a single, indivisible nation rather than a loosely bound.

i think the answer is b.