The smallest positive value of $x$ in degrees satisfying the equation $\tan(x+100^{\circ}) = \tan(x+50^{\circ}) \tan(x) \tan(x-50^{\circ})$ is (in $^{\circ}$)

  • A
    $30$
  • B
    $15$
  • C
    $45$
  • D
    $60$

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