Marginal costs. Keep in mind that marginal means on the edge of something, so the cost of producing one more unit would be on the edge. Hope this explanation helps.
Answer:
Radical Republicans were upset about both plans because they wanted to destroy all political power of farmer slave owners. They were known as "radical" republicans because they wanted to give full citizenship for African Americans so can have the right to vote.
While Jackson believed in a strict construction of the Constitution and in states' rights, he believed that when the Constitution had delegated power to the federal government, the federal government had to be supreme. Jackson also valued the Union and was not willing to see it compromised or to let it disintegrate.
