Which of the following was not a cause of the resurgence of the Ku Klux Klan in the 1920s?

The 1920s Klan gained support by opposing immigration and urbanization and by promoting the supposed superiority of white Protestant culture. It used terrorism to intimidate African Americans and other groups it targeted—not to terrorize white citizens to incite racial violence against African Americans. Therefore, choice D was not a cause of the Klan’s resurgence.

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