Though the placement of commas in a sentence can often be an arbitrary thing according to the writer's intent of meaning, this one rule does seem to bear common usage in good writing:
Thus, the addition of the comma after "victim" in your sentence. Also, please note that capital letters for the beginning of a sentence are still required:
This novel confuses readers as it makes them ask who is the victim, and who is the victimizer? Who is the civilized? Who is refined?
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