The attempt to make black men American citizens was in a certain sense all a failure, but a splendid failure.-W. E. B. DuBois (1868-1963), African American historian and activist Which aspects of Radical Reconstruction does the excerpt refer?

The correct answer is 14th Amendment

The called Reconstruction Period tried to apply measures that would integrate former servants into southern society. The south reacted. Clandestine groups of whites created the terrorist secret societies of the Knights of the White Camellia and Ku Klux Klan, the most well-known and enduring, aimed at frightening the freeman, the liberated, and preventing equality.