If $x = \log p$ and $y = \frac{1}{p}$,then

  • A
    $\frac{d^2y}{dx^2} - 2p = 0$
  • B
    $\frac{d^2y}{dx^2} + y = 0$
  • C
    $\frac{d^2y}{dx^2} + \frac{dy}{dx} = 0$
  • D
    $\frac{d^2y}{dx^2} - \frac{dy}{dx} = 0$

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