Which of the Following Was One of the Key Constituencies

Which of the following was one of the key constituencies of the Whigs?

A) Farmers who were alienated by the commercialized economy
B) Small businessmen who hoped that they would be protected from monopolies
C) Irish immigrants who immigrated to the United States in large numbers during the 1840s
D) Planters who wanted the United States to have a stable bank system that would float loans
E) African Americans who were being oppressed in the South