Characterization can help to show the overall theme of a story?

Characterization is created in stories to reveal theme and meaning and that drive plot action in some way and they are not simply bystanders to fatalism.

Hope it helps answer the question:)

what did the protagonist say?

scholarship is an sc because, by definition, a subject complement is the adjective, noun or pronoun that follows a linking verb, for example the verb be (in any of its forms).