$\tan \frac{\pi}{5} + 2 \tan \frac{2 \pi}{5} + 4 \cot \frac{4 \pi}{5} = $

  • A
    $\cot \frac{\pi}{5}$
  • B
    $\cot \frac{2 \pi}{5}$
  • C
    $\cot \frac{3 \pi}{5}$
  • D
    $\cot \frac{4 \pi}{5}$

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