The development of the current two major parties, the Democratic and the Republican parties, is the result of
A. Thomas Jefferson's Democratic Republican party splitting in two.
B. Alexander Hamilton's Federalist party splitting into two major factions.
C. The radicalization of voters due to the Tea Party's domination of the government.
D. The rise and fall of various parties over time, due to the big issues at the time.
E. Voters rejecting the Bull Moose and Know-Nothing parties.
The only answer that is even close to being correct here is the Option D. This is the correct answer.
Some of these options are clearly way off the mark. Option C cannot be right because the Republican and Democratic Parties existed long before the Tea Party. Option D is wrong for a similar reason. The Know-Nothings did exist around the same time as the Republican Party was getting started, but the Bull Moose Party was a short-lived party that only arose after the Republicans and Democrats were well established.
The Federalist Party did not split into two. Instead, it simply disappeared after the War of 1812. The Democratic Republican Party did not really split in two either. It simply morphed into what we now call the Democratic Party.
Option D is the correct answer.