Some examples of a Primary Source are: Letter
Professor's Website on Civil War
Articles of Clothing
Textbook

A: Letter

and

C: Articles of Clothing

Explanation:

Primary Sources are immediate, first-hand accounts of a topic, from people who had a direct connection with it. Primary sources can include; Texts of laws and other original documents. Newspaper reports, by reporters who witnessed an event or who quote people who did.

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.

try something like republic or democracy joined or something because its talking about a election party.