The correct answer is everyone. It is an Indefinite pronoun as it is used to refer to nonspecific people. As a general rule, these pronouns are considering to be in the singular form so the verb has to agree with it. This pronoun means “every person in a group”.
Atticus did not want his children in court because he knew they would be exposed to the lies, deceit, and racism endemic to the society in which his family resided and because of the abuse that would invariably be heaped upon his children's father by virtue of his willingness to defend Tom Robinson.
Not exactly sure, could you add more detail
I don't see any text to read with your question