David is writing a short story about a boy who witnesses the crash landing of a strange flying object. Read this paragraph from the story: There was something there, all right, buried beneath the sand dunes. Tyler couldn’t see it, but he knew it was there, just the same. An odd smell, like hot metal, hung in the air, and every clump of grass dotting the dunes was burned to a crisp. And wasn’t there a sound? Tyler held his breath and listened. Yes, a faint, disturbing humming, as if the dunes now concealed a vast and dangerous machine.

What purpose within the narrative structure does this paragraph serve?

A. It is part of the falling action and reveals the direct effects of the story’s climax.
B. It is part of the introduction and establishes the story’s setting and the narrator’s point of view.
C. It is part of the rising action and sets up a situation that may cause problems for the main character.
D. It is part of the climax and shows the main character preparing to confront the danger posed by the object.