Justify the outcome of the civil war

Slavery was permanently abolished in America and the United States was United once again. The Civil war was justified simply for the fact that if the South had not seceded, it is possible that slavery would have gone on for much longer and that the divide between North and South would have deepened beyond repair

Explanation:

d.he wanted to send diplomats to communist countries.

answer; ///i do believe that the correct answer is (b) ///middle colony