Which of the following statements best describes the impact of the
Emancipation Proclamation?
(A) All slaves were freed in both the North and the South.
(B) The practice of slavery was ended in the border states only.
(C) The slaves of the Confederacy were freed.
(D) All slaves who joined the Union army would be freed.
(E) Slaves were freed in the North but not in the border states.
The statement that best describes the impact of the Emancipation Proclamation would be that "(A) All slaves were freed in both the North and the South," since this had been the most contentious issue in the US lead up to the war.