The correct answer is Option B! I literally just took the test!
(it was time to end slavery throughout the United States.)
Explanation:
As the Civil War began, President Lincoln accepted the belief that it was time to end slavery throughout the United States.
While the war was being fought, its complex movements to end slavery included the Emancipation Proclamation in 1863. The president used the Union's army to protect fugitive slaves, forced the border states to ban the slave system and pushed ahead in Congress the now famous Thirteenth Amendment to the Constitution of the United States, which definitively prohibited slavery.
As the Civil War began, President Lincoln accepted the belief that it was time to end slavery throughout the United States.
While the war was being fought, its complex movements to end slavery included the Emancipation Proclamation in 1863. The president used the Union's army to protect fugitive slaves, forced the border states to ban the slave system and pushed ahead in Congress the now famous Thirteenth Amendment to the Constitution of the United States, which definitively prohibited slavery.