How does the author create an aesthetic impact on the excerpt

What is the central idea in this advice from branch rickey to jackie robinson?  

Expand the outline you wrote in lesson 1 about the american dream into an argumentative research essay. as in most essays, you'll need to include an introduction, body, and conclusion. you'll also need to support your claim with evidence

Read this passage: byron and mitch are co-captains of the mathletes, their high school's academic team. they are backstage with the five other team members, preparing to compete in the state math quiz. byron sits on the floor with his eyes closed and his earbuds in, listening to classical jazz, which him focus his mind and energy. suddenly, he feels a presence beside him. he opens his eyes to see mitch staring at him. "mathletes! mathletes! " mitch chants loudly. mitch gives byron a thumbs-up and then proceeds to strut around like a peacock, high-fiving the other team members, as byron shuts his eyes again and does his best to refocus his mind which statement best summarizes the passage?