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

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

$\int \frac{(1+\sin x)}{(1+\cos x)} d x=?$

A. $\tan \frac{x}{2}+2 \log \left|\cos \frac{x}{2}\right|+C$

B. $-\tan \frac{x}{2}+2 \log \left|\cos \frac{x}{2}\right|+C$

C. $\tan \frac{x}{2}-2 \log \left|\cos \frac{x}{2}\right|+C$

D. none of these

Solution:

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