The correct answer is B) to preserve the Union against the attacks of the Confederacy.
According to Lincoln, the purpose of the Civil War was to preserve the Union against the attacks of the Confederacy.
Abraham Lincoln decision to fight against the Confederates was not to abolish slavery in the first place but to preserve the Union at all cost. He did not want the Southern states to secede. As the President of the United States, he considered that his sacred duty was to protect and maintain the Union. The Civil War started in April 1861 and ended in April 1865.
