Kai began the research process by asking, "How does playing a musical instrument improve academic performance?" Now, he needs to modify his major research question as a result of his research. Which question narrows the focus of his research?

c. to understand which information will best persuade your readers. (apex) correct answer.

im sure you mean write *

basic principle: a pronoun usually refers to something earlier in the text (its antecedent) and must agree in number — singular/plural — with the thing to which it refers. the indefinite pronouns anyone, anybody, everyone, everybody, someone, somebody, no one, and nobody are always singular.