In which two ways do extras function in a drama

Which of the following statements is true about the figure below?

Read this excerpt from the grapes of wrath: snub-nosed monsters, raising the dust and sticking theirsnouts into it, straight down the country, across thecountry through fences, through dooryards, and in and outof gullies in straight lineswhich best describes the tone in this passage

Need on this. its about integrating sources, quoting, and paraphrasing. (free 15 points! < 3)