Read these sentences from the text. Were those zombies?' asked Mac.

'I don’t know,' said Dennis. 'Whatever they were, they didn’t seem completely human.'

What evidence from the story supports the idea that the people Mac and Dennis saw were not "completely human"?
There were a lot of them.
They were "only twenty feet away" from Mac and Dennis.
They were "crazed" and had "wild eyes."
They were running toward Mac and Dennis.