Mark against the correct answer in each of the following:
Question:

Mark $(\sqrt{ })$ against the correct answer in each of the following:

$\int e^{x} \cdot \frac{x}{(1+x)^{2}} d x=?$

A. $\mathrm{e}^{\mathrm{x}} \cdot \frac{1}{(1+\mathrm{x})}+\mathrm{C}$

B. $e^{x} \cdot \frac{1}{x}+C$

C. $e^{x} \cdot \frac{x}{(1+x)}+C$

D. None of these

Solution:

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