Mark (√) against the correct answer of the following:
\(\int e^x \left(\frac{1 + sin\,x}{1 + cos\,x}\right)dx = ?\)
∫ ex ((1 + sin x)/(1 + cos x)) dx = ?
A. ex sin\(\frac{x}{2}\) + C
B. ex cos\(\frac{x}{2}\) + C
C. ex tan\(\frac{x}{2}\) + C
D. None of these