$\int \left[ \frac{1+\log x}{\cos^{2}(x \log x)} \right] dx =$

  • A
    $\sin(x \log x) + c$
  • B
    $\sin^{2}(x \log x) + c$
  • C
    $\log(x \log x) + c$
  • D
    $\tan(x \log x) + c$

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