Which two statements summarize central ideas of the article?

Question 1 options:

A. The Republican Party, which gained political power, opposed extending slavery into the new states and had little support from the South.

B. During the war, the Confederacy was mainly on the defense, trying to protect as much of its territory as it could, while occasionally launching attacks.

C. While many people were affected by the Civil War, one of the most significant results was millions of slaves being granted their freedom.

D. The Civil War was a result of growing regional tensions that led to Southern states seceding from the Union and forming the Confederacy.