Which action was not used by some white southerners to deny justice to blacks?
a.
they allowed hate groups such as the ku klux klan to terrorize blacks.
b.
they passed black codes.
c.
they refused to establish schools for blacks.
d.
they allowed blacks to vote and hold political office.

D.They allowed blacks to vote and hold political office.

Explanation:

The Southern States passed a series of laws after the Reconstruction that aimed to restrict African American civil rights. Those laws are called the Jim Crow Laws.

The Jim Crow was a practice of discrimination through the law, those laws were the representation that many whites still believed that African Americans were inferior and that they should not share the same place or rights.

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.