If the sum of the roots of the equation $x^2 + px + q = 0$ is equal to the sum of their squares,then

  • A
    $p^2 - q^2 = 0$
  • B
    $p^2 + q^2 = 2q$
  • C
    $p^2 + p = 2q$
  • D
    None of these

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