The equation of the axis of the parabola $2x^2 + 5y - 3x + 4 = 0$ is

  • A
    $x = \frac{3}{4}$
  • B
    $y = \frac{3}{4}$
  • C
    $x = -\frac{1}{2}$
  • D
    $x - 3y = 5$

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