(A) ** Only the states still at war with the Union
(B) In the four loyal slave states
(C) Confederate lands already captured by the Union
(D) In the border states
EXPLANATIONS BELOW
Concept note-1: -It applied only to states that had seceded from the United States, leaving slavery untouched in the loyal border states. It also expressly exempted parts of the Confederacy (the Southern secessionist states) that had already come under Northern control.
Concept note-2: -President Abraham Lincoln issued the Emancipation Proclamation on January 1, 1863, as the nation approached its third year of bloody civil war. The proclamation declared “that all persons held as slaves” within the rebellious states “are, and henceforward shall be free."
Concept note-3: -The Emancipation Proclamation did not apply to enslaved people in the border states of Missouri, Kentucky, Delaware, and Maryland, which had not joined the Confederacy. Lincoln exempted the border states from the proclamation because he didn’t want to tempt them into joining the Confederacy.