Shortly after the Civil War, what was the controversy concerning the printing of paper money called greenbacks? A. Debtors did not like them because the paper money was not worth as much as specie. B. The Republican Party had allowed the printing of greenbacks, angering representatives from the northern states. C. Creditors were concerned that they would lose money on the loans they had made. D. The economy was based only on how much gold was available, and creditors wanted to add silver as well.