$\int \frac{e^x(1+x)}{\cos ^2(e^x \cdot x)} dx =$
- A$-\cot(e^x) + c$,where $c$ is a constant of integration.
- B$\tan(x \cdot e^x) + c$,where $c$ is a constant of integration.
- C$\tan(e^x) + c$,where $c$ is a constant of integration.
- D$-\cot(x \cdot e^x) + c$,where $c$ is a constant of integration.
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