Final answer:
The revision of the sentence that changes the tone to a less formal one is: 'Movie monsters like Godzilla and King Kong give society a way to see itself in a critical mirror.'
Step-by-step explanation:
The revision of the sentence that changes the tone to a less formal one is:
B) Movie monsters like Godzilla and King Kong give society a way to see itself in a critical mirror.
This revision uses simpler language and a more casual tone, making it less formal than the original sentence. It retains the same meaning and conveys the idea that movie monsters provide a reflection of society.