African Americans who fought for the Union during the Civil War were not freed until after the war. were usually led by African American officers. had been recruited in border states. were paid less than white soldiers.

African Americans who fought for the Union during the Civil War were paid less than white soldiers.

African American soldiers only recieved $10 per month for being a soldier, whereas their white counterparts received $13 a month.

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..

letter a is the answer