How do writers use word choices to create a credible tone?

The significant structural shift that happens between chapters 21 and 22 is

What does the following advertisement most clearly reveal about the views of its intended audience? a. the audience worries about the health of pets. b. the audience owns both puppies and kittens. c. the audience has a soft spot for cute animals d. the audience wants to buy a dog or cat.

Which of the following best describes a writing style authors use to convey a satirical tone?