What was the Mississippian Culture based on ?

The culture was based on intensive cultivation of corn (maize), beans, squash, and other crops, which resulted in large concentrations of population in towns along riverine bottomlands.

Explanation:

The culture was based on intensive cultivation of corn (maize), beans, squash, and other crops, which resulted in large concentrations of population in towns along riverine bottomlands.

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.