Could you be referring to the holocaust? In that case it would have been the Jewish people.
Answer:
Except : A) deny African Americans citizenship.
Explanation:
US Congress passed the First Civil Rights in April 1866 that granted citizenship to all African Americans and annuled the infamous Supreme Court´s Dred Scott decision of 1857. So, the Black Codes laws couldn´t impede freed black people from becoming American citizens.
It changed by everything going cruel and alarmed.
