Step-by-step explanation:
The correct answer is E) the Ku Klux Klan. The Ku Klux Klan (KKK) was a prominent organization during the Reconstruction era that symbolized the "white backlash" against the efforts to grant civil rights and political power to freed African Americans. The KKK used violence, intimidation, and terrorism to suppress and control African Americans and their allies. Their actions were aimed at undermining the progress made during the Reconstruction era and maintaining white supremacy in the South.