Answer:
Option A. During the 1920s and 1930s, the Ku Klux Klan recruited most heavily among native-born Protestants.
Explanation:
Although most people associate the Ku Klux Klan with the 1950s and 1960s era of civil right movements, the hate organization was in fact most popular during the 1920s, where its reach as nationwide and its growth the biggest the organization ever saw. During this decades, the Ku Klux Klan recruited most heavily among white native-born American Protestants, who were in fear that the Aftermath of World War I would change their country as they known it. Xenophobia, white-supremacist and religious prejudice helped these middle-class white Americans who were salesman, ministers and clerks, doctors and farmers, to enlist in the Ku Klux Klan.
