I'm pretty sure it's the first one. 451 degrees is the temp which paper burns, the book is about book burning. There aren't 451 characters that are focused on, I don't think 451 pertains to the address or district...it was really vague to make it seem like it could happen anywhere to anyone.
I believe that would be personal autonomy and responsibility.
The correct answer is: [C]:
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"<span>The landlord put the key back on the counter that he uses to unlock the front door."
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