$\frac{\sin \theta + \sin 2\theta}{1 + \cos \theta + \cos 2\theta} = $

  • A
    $\frac{1}{2} \tan \theta$
  • B
    $\frac{1}{2} \cot \theta$
  • C
    $\tan \theta$
  • D
    $\cot \theta$

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