Which statement identifies the central idea of the speech? A. President Lincoln believes that the Civil War was God's way of punishing thei United Sates for its history of slavery.

B. President Lincoin believes that the South is to blame for the causalities of war, as it refused to give up slavery.

C. The nation has changed in many positive ways since President Lincoln's last inauguration.

D. The Civil War continued after the abolishment of slavery, proving that slavery was never the true cause of the war.