Politics is best defined as a process by which groups of people
a. gather together for meetings
b. contact their neighbors to encourage voting
c. make decisions, generally within governments
d. lead other groups of people to believe a certain way

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.