The equation of the bisectors of the angle between the lines represented by the equation $(y - mx)^2 = (x + my)^2$ is

  • A
    $mx^2 + (m^2 - 1)xy - my^2 = 0$
  • B
    $mx^2 - (m^2 - 1)xy - my^2 = 0$
  • C
    $mx^2 + (m^2 - 1)xy + my^2 = 0$
  • D
    None of these

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