Which of the following did not lead to the development of a two-party system?

a) the selection of presidential candidates from "the virginia dynasty"

b) southern concern over potential abolition of slavery

c) a belief that democracy meant people voted on a small set of virtuous candidates

d) the financial crisis of 1819, and debate over how banks should be organized

In my honest opinion , i’d say franklin d roosevelt was a president that impacted our nation , i say this because fdr is voted among top three best us presidents and he was the longest serving president by 3 terms , usually presidents only supposed to have two terms increments of 4 years , equivalent to 8 years total before election time. and he established the fdic , through the 1933 banking act and he established the us , social security system , during his presidency, and established a national minimum wage , through the fair labor standards act , fdr led the allied coalition to victory in wwii and he played a major role in the creation of the united nations.