Which sentence gonna be included in a summary of a literary text about a teen who is running for student body president?

Marta is an ambitious, daring and unapologetic character

Martha’s campaign posters were mostly purple and black

Martha missed school dance to focus on her campaign for student body president

Martha demonstrated cool confidence as she practiced her stirring speech in front of the class

"Martha demonstrated cool confidence as she practiced her stirring speech in front of the class" would be a good sentence to include in a summary of the literary text about a teen running for student body president.