The correct answer is option D. The Republican Era was the period when three consecutive Republicans were elected president.
From 1920 to 1930 all the presidents were Republicans. Most of their political policies were pro-business and consisted of lowering taxes on personal income as well as weaking unions among other policies.
The presidents were: Warren G. Harding, Calvin Coolidge and Herbert Hoover. Since all the presidents were Republicans during this period, they had similar policies and thus, little political action occurred. Moreover, the Democrats were very divided at that time and they didn't have much power.
