(A) African-Americans fled to Canada
(B) ** the purpose of the Civil War changed
(C) the Confederate Army executed slaves by the dozens
(D) slaves would be freed from the border states
EXPLANATIONS BELOW
Concept note-1: -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.