The option that best shows that Stacie has made a personal connection to understand August’s character is:
"Once, after I hurt my brother’s feelings, my parents told me to apologize. I was not really sorry at the time, but I had to apologize anyway. I know how August feels."
This response demonstrates Stacie's personal experience with insincerity in apologizing, allowing her to empathize with August's situation and feelings. It indicates a deeper understanding of how one can express a superficial apology without genuine remorse, paralleling Julian's behavior towards August.