Which was a factor in the development of a two-party system in elections?

A.great satisfaction with the historical selection of candidates from the successful Virginia political scene

B.a belief that education and virtuosity were the most important qualities in a candidate

C.Southern concern over potential abolition of slavery by the dominant political party

D.widespread agreement that banks should be organized into two "tiers," at federal and state levels

E.the financial crisis of 1819, and debate over how banks should be organized

F.an ongoing debate over tariffs and which part of government should levy them