Answer:
Under the astonished, wide-eyed moon, with the fires casting strange shadows upon these towering figures, I am rather inclined to believe him.
Explanation:
Unlike the second to last sentence (right before the above written), this sentence gives the moon traits that a person would have. The second to last sentence (the one with "They walk") only <em>tells</em> the personification rather than <em>shows</em>.
Both Napoleon and Snowball definitely want the the farm run by animals by getting rid of Mr. Johns and they both are instrumental in spreading Animalism. But they are also different, Snowball wants animals to work together and run the farm, while Napoleon is more totalitarian and eventually usurps power.
Answer:
The most accurate option is hopefully, but we do not have enough context and however could also work.