If $\alpha, \beta$ are the roots of $a x^2+b x+c=0$,then the quadratic equation whose roots are $\sqrt{5} \alpha, \sqrt{5} \beta$ is

  • A
    $a x^2+\sqrt{5} b x+5 c=0$
  • B
    $a x^2+\sqrt{5} b x+\sqrt{5} c=0$
  • C
    $a x^2+5 b x+\sqrt{5} c=0$
  • D
    $a x^2+5 b x+5 c=0$

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