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A) \[\frac{1}{{{y}^{2}}}\]
B) \[\frac{1}{{{y}^{4}}}\]
C) \[\frac{{{x}^{2}}}{{{y}^{3}}}\]
D) \[\frac{{{x}^{3}}}{{{y}^{4}}}\]
E) None of these
Correct Answer: D
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