Passage
The Building
Leslie was walking slower than a drowsy turtle. He was trying to catch up to Eric’s hasty footsteps. Leslie didn’t care that his glasses would slide down his nose every so often. His eyes were keenly focused on an open book balanced on his right hand. From time to time, Eric had to pull Leslie away from the traffic. Eric carried a basketball and bounced it on the ground occasionally. The boys—ages 12 and 15—always walked to school together.

Each morning, Leslie would read to his older brother or tell him the summary of what was going to be covered in his reading class. Today he was reading “The Rocking Horse Winner.” Leslie only had 15 minutes before reaching the building that would separate him from his brother. To him, the building was a sign that he was still younger, weaker, and smaller than Eric. The building, on the other hand, freed Eric. He felt less like a big guy outwitted by his little brother and more like the basketball star of the high school. Until it was time to return home again, the boys lived their separate lives.

How does Leslie’s character enhance Eric's character in the following passage?

Leslie reading to his older brother highlights Eric's strength.
Leslie’s inclination toward books highlights Eric's athletic nature.
Leslie’s young age accentuates Eric's lack of experience and wisdom.
Leslie’s slow footsteps show how determined his older brother is.