Answer:
Reconstruction (1865-1877), the turbulent era following the Civil War, was the effort to reintegrate Southern states from the Confederacy and 4 million newly-freed people into the United States.
I think the answer is option C, if I'm wrong please tell me
1. dna
2. prokaryotic
3. nucleus
4. eukaryotic
The Americans felt that it was their destiny to expand their territory. They didn't want any other countries to take land from them. They only wanted to protect their land.
They were justified.