$\int_0^{\frac{\pi}{4}} \frac{\sec ^2 x}{(1+\tan x)(2+\tan x)} d x=$

  • A
    $\log \left(\frac{3}{4}\right)$
  • B
    $\frac{1}{3} \log \left(\frac{4}{3}\right)$
  • C
    $\log \left(\frac{4}{3}\right)$
  • D
    $\frac{1}{4} \log \left(\frac{3}{4}\right)$

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