A) \[25{{x}^{3}}+59{{x}^{2}}{{y}^{3}}+21{{y}^{4}}\]
B) \[15{{x}^{3}}+59{{x}^{5}}{{y}^{2}}+21{{y}^{4}}\]
C) \[40{{x}^{5}}+55{{x}^{2}}{{y}^{3}}+21{{y}^{4}}\]
D) \[40{{x}^{4}}+59{{x}^{2}}{{y}^{2}}+21{{y}^{4}}\]
E) None of these
Correct Answer: D
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