Answer:
A. It makes the audience aware of the narrator's thoughts and wary of Dewy's thoughts and actions
Step-by-step explanation:
Because the author keeps the perspective consistent, the audience, much like the narrator Mr. Soltz, is worried about Dewy Scrugg's actions and words. The audience doesn't know what Dewy is thinking, so it's hard to know how to feel about him—is he a harmless salesman or is he dangerous?