Here are the correct responses for your questions:
Question 1: The Battle of ___ caused Lincoln to issue the Emancipation Proclamation.
Response: A. Antietam
Question 2: Lincoln cited his Presidential role as __________ to issue the Emancipation Proclamation.
Response: D. Commander in Chief
Question 3: The ___ made slavery illegal in the United States.
Response: A. 13th Amendment