Why Were Republicans Able to Dominate Politics in the 1920s

Why were Republicans able to dominate politics in the 1920s, controlling both Congress and the presidency?

A) Republicans appealed to the traditional values of immigrant groups and factory workers.
B) Americans were looking for a return to traditional policies following the changes of the Progressive Era.
C) Republican government pushed for increased taxation to provide more services to the urban poor.
D) The government role in the economy decreased in the 1920s.
E) Lower tariffs provided better access to inexpensive, European consumer goods, fueling the Jazz Age culture.