In addition to the emancipation proclamation, why was the 13th Amendment vital to the abolition of the institution of slavery in the United States? Answer Choice:
A. The Emancipation Proclamation applied only to the Confederate States with the Union.
B. All laws pertaining to slavery required amendment in order for the policy to be official
C. The 13th Amendment made newly - freed African Americans citizens, thereby making void the institution of slavery
D. The 13th Amendment provided newly - freed Africans Americans the right to vote, and a national vote was needed to end slavery