Answer:
Racism was abolished.
Explanation:
The Reconstruction Era (1865-1877) occurred after the Civil War and was aimed at mending the inequalities of slavery and its "legacy" in politics, economics, and society after the Southern states were brought back into the Union (Foner, n.d.).
The third choice is the only correct answer here, since we can see from history that racism was not abolished. While the Reconstruction Era did see much success, it did not prove to be a permanent solution to bridging the gap between African Americans and rest of America at the time.
The Freedman's Bureau was a Reconstruction agency founded by Abraham Lincoln to assist freed men in the process of conforming to society.
Over one dozen African Americans were elected to Congress in the wake of reconstruction, all of whom represented the recently founded Republican party, all in an effort to fight for African Americans' rights through government.
Finally, the KKK was founded in 1866 (during Reconstruction), and quickly grew in the South to counter the moves by Republican officials to raise African Americans' standing in society (Bryant, 2002).
References:
Bryant, J. (2002) Ku Klux Klan in the Reconstruction Era - New Georgia Encyclopedia
https://www.georgiaencyclopedia.org/articles/history-archaeology/ku-klux-klan-in-the-reconstruction-era/
Foner, E. (n.d.) Reconstruction - United States history - Britannica
https://www.britannica.com/event/Reconstruction-United-States-history
