If $33\theta = \pi$, then the value of $\cos \theta \cos 2\theta \cos 4\theta \cos 8\theta \cos 16\theta$ is

  • A
    $\frac{1}{16}$
  • B
    $\frac{1}{32}$
  • C
    $\frac{1}{64}$
  • D
    $-\frac{1}{32}$

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