Respuesta :
President Lincoln issued the Emancipation Proclamation after the Battle of Antietam.
The Emancipation Proclamation
The Emancipation Proclamation was declared after the Union won the battle of Antietam.
The proclamation was implemented for the Confederate to free the slaves.
President Lincoln's order of the Emancipation Proclamation was a turning point because it boosted the morale of the Union soldiers.
Freed slaves joined the Union as soldiers to fight against the South.
Thus option A is the correct answer.
Learn more about the Emancipation Proclamation here:
brainly.com/question/365465