$\int \frac{\sec x}{\sqrt{\sin (2 x + \theta) + \sin \theta}} d x =$

  • A
    $\sqrt{(\tan x + \tan \theta) \sec \theta} + c$
  • B
    $\sqrt{2 (\tan x + \tan \theta) \sec \theta} + c$
  • C
    $\sqrt{2 (\sin x + \tan \theta) \sec \theta} + c$
  • D
    $\sqrt{2 (\cos x + \tan \theta) \sec \theta} + c$

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