Just based off of my common knowledge of humor, I would say personally that "1. Is Rover really any brighter than a hamster, a chicken, or that kid who's always eating Play-Doh? " supports the idea that the informational text uses a humorous tone.
Answer:
What are the statments?
Explanation:
"these scenes of terror and slaughter"
+
"come to a time when no one dared speak his mind"
The First Option
Because the others are all features of the human condition that contribute to the undesirable aspects of the state of nature
because if not then it'll bite back