Paradoxically, the Progressive Era Left the Republican Party and the Democratic

Paradoxically, the Progressive Era left the Republican Party and the Democratic Party ______.

A) organizationally much stronger but in a much weaker electoral position
B) under a cloud of suspicion regarding corruption of the presidential election of 1864
C) as third parties; Whig and Bull Moose became the two major parties until the Great Depression
D) organizationally weaker but more entrenched than ever in the political system