Which sentence could be included in a summary of a literary text about a teen who is running for student body president?
A: Marta missed the school dance to focus on her campaign for student body president.
B: Marta's campaign posters were mostly purple and black.
C: Marta demonstrated cool confidence as she practiced her stirring speech in front of the class.
D: Marta is an ambitious, daring, and unapologetic character.