Evaluate $\int e^x \left[\frac{\sin x + \cos x}{1 - \sin^2 x}\right] \, dx$

Question

$(e^x \cdot \csc x) + c$

$e^x \cdot \cot x + c$

$(e^x \cdot \sec x) + c$

$e^x \cdot \tan x + c$

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