A) \[\frac{x}{{{x}^{2}}+1}+C\]
B) \[\frac{\log \,x}{{{(log\,x)}^{2}}+1}+C\]
C) \[\frac{\,x}{{{(log\,x)}^{2}}+1}+C\]
D) \[\frac{\,x{{e}^{x}}}{1+{{x}^{2}}}+C\]
Correct Answer: C
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