Answer:
D - amendments to the Constitution
Explanation:
I took a test and got it right
C.
This is why we have good relations currently.
Well it's in your question it was the North of America, the people who didn't like slaves and thought the south was wrong. Everything term you used is considered for the North of America during the American Civil War.
The answers are in the PDF sorry about the first two I couldn't do them and if you can't open it ask me I can send it another way.