The best option that shows Peter has made a personal connection that helps him understand Jack Will’s character is:
"At first, Jack Will seems bored with August and the school tour. But at the end of the chapter, he tries to help August. I understand how this happens, because my best friend and I did not get along when we first met."
This response illustrates Peter's ability to relate to Jack Will's initial disinterest followed by a supportive action. Peter reflects on his own experience with friendship, which helps him empathize with Jack Will's behavior and understand the complexity of his character.