If $\frac{1}{\sqrt{a}} - \frac{1}{\sqrt{b}} = 0$,then the value of $\frac{1}{a} + \frac{1}{b}$ is

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

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