As a reaction to this increase of immigrants, the Ku Klux Klan reorganized and expanded during this period campaigning against African Americans, Catholics, Jews, and immigrants.
The Ku Klux Klan first arose in the South during the Reconstruction Era, but experienced a resurgence in the period immediately following the end of the First World War.
In conclusion, we can conclude that the correct answer is given above.
learn more about The Ku Klux Klan from here: https://brainly.com/question/180449