Why would a writer choose to use a variety of sentences? to meet editorial requirements to challenge the reader to create a theme to make the text harder for the reader

In the following conversation, which group discussion technique does emily most clearly show?

In the story “seventh grade,” victor’s and michael’s hopes and expectations about girls often cause them to a.act in embarrassing ways. b.get into trouble at school. c.struggle with friendships. d.do poorly in their classes.

What event shows how eckels' character develops over the course of the story sound of thunder