A metaphor- it compares two things without using "as" or "like"
B) Because she asks him to divorce his wife
The correct answer is C: <span>To impress the disparity of experience between citizens and slaves.
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This paragraph is informing the audience that what they enjoy -- freedom and independence -- is not what slaves enjoy. He is trying to impress upon his audience the "the immeasurable distance between" them.
The significance of this title tells about Buck's experience with the man in the red sweater. Buck is firmly beaten and humiliated by the man, but learned a valuable lesson. He learned that might makes right in this strange new area. That rule becomes a law to Buck. He calls it the "primitive law," and throughout the book Buck learns how that rule affects him, other dogs, and his owners.