5. D. The Reconstruction
After the Civil war, many Southern states were devastated. Former members of the Confederacy were recovering from the war as the oppression of freed slaves continued through passing bills that restricted opportunities for blacks.
6. A. tried to fire his Secretary of War in violation of the Tenure of Office Act
7. D. A large naval blockade
A strategy proclaimed by former President Abraham Lincoln to cut off trading by the Confederacy.