I believe the answer to be C. checks and balances
Answer:
a. The people of Puerto Rico did not have the same rights or tax status as other Americans
Answer:
denied amnesty to wealthy plantation owners in the South,10 percent of a state’s registered voters to take an oath of loyalty to the Union,50 percent of a Southern state’s registered voters to take an oath of loyalty to the Union
Explanation:
He did not create the primavera
Well, the international roll of the United States wasn't affected much by the Civil War. It just brought about a lot of internal change. Please correct me if I misunderstood your question