Read this excerpt from "A Drop in the Bucket."

Diane's mother, Dolores, has come along for the trip and watches, wide-eyed, as her 40-year-old daughter walks into their room. Diane is carrying a brain in a bucket in one hand, holding up baggy gym shorts with the other, and reeking of an odor not found in nature.

How does this excerpt create a sense of momentary suspense or tension?

The reader does not understand why Diane is dressed in gym clothes.
The reader does not know why Diane's mother is present.
The reader does not understand why Diane's mother is confused.
The reader does not know why Diane is carrying a brain.