The eccentricity of the ellipse $\left( \frac{x - 3}{y} \right)^2 + \left( 1 - \frac{4}{y} \right)^2 = \frac{1}{9}$ is

  • A
    $\frac{\sqrt{3}}{2}$
  • B
    $\frac{1}{9}$
  • C
    $\frac{1}{\sqrt{3}}$
  • D
    $\frac{1}{3}$

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