Southern whites in state legislatures restricted the freedom of African Americans in the South soon after the Civil War by using (a) The federal courts
(b) Congressional aid
(c) Freedman's Bureau
(d) Black codes

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.

i think it's b or c hope this