(A) To end slavery in the country
(B) To get more states to join the Union
(C) To gain allies
(D) ** To help the Union win the war
EXPLANATIONS BELOW
Concept note-1: -From the first days of the Civil War, enslaved people had acted to secure their own liberty. The Emancipation Proclamation confirmed their insistence that the war for the Union must become a war for freedom. It added moral force to the Union cause and strengthened the Union both militarily and politically.