The quadratic equation whose roots are $\sin ^2 18^{\circ}$ and $\cos ^2 36^{\circ}$ is

  • A
    $16 x^2-12 x-1=0$
  • B
    $16 x^2-12 x+4=0$
  • C
    $16 x^2-12 x+1=0$
  • D
    $16 x^2+12 x+1=0$

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