The Ku Klux Klan is a far-right organization created in the United States during the Reconstruction in 1866 to resist all Reconstruction efforts in the South through violence against Blacks and Whites, after the cessation war. Its ideologies are of white racial supremacy, racism, anti-Semitism, homophobia, anti-Catholicism, anti-communism, xenophobia, among others. Initially their actions were only to make fun of these minorities; however, over time they have become more vandalism and terrorist. So, the correct answer is C. The Ku Klux Klan.