Which of the excerpts from The Monsters Are Due on Maple Street is an example of foreshadowing?

“Where is Pete Van Horn anyway? Didn't he get back yet?”
Don approaches the group, stops a few feet away to stare toward the house, then looks back toward the group.
“I don't know why the generator's working. It's just working, that's all!”
“That's right looking up at the sky as if . . . as if [Goodman] were waiting for something.”