Let $\alpha, \beta$ be the roots of the equation $ax^2 + 2bx + c = 0$ and $\gamma, \delta$ be the roots of the equation $px^2 + 2qx + r = 0$. If $\alpha, \beta, \gamma, \delta$ are in $G.P.$,then

  • A
    $q^2ac = b^2pr$
  • B
    $qac = bpr$
  • C
    $c^2pq = r^2ab$
  • D
    $p^2ab = a^2qr$

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