$\int \frac{1}{x} \sec^2(\log x) \, dx = $

  • A
    $\tan(\log x) + c$
  • B
    $\log(\sec x) + c$
  • C
    $\log(\tan x) + c$
  • D
    $\sec(\log x) \cdot \tan(\log x) + c$

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