If $\alpha, \beta$ are the roots of $x^2 - px + q = 0$ and $\alpha', \beta'$ are the roots of $x^2 - p'x + q' = 0$,then find the value of $(\alpha - \alpha')^2 + (\beta - \alpha')^2 + (\alpha - \beta')^2 + (\beta - \beta')^2$.

  • A
    $2(p^2 - 2q + p'^2 - 2q' - pp')$
  • B
    $2(p^2 - 2q + p'^2 - 2q' - qq')$
  • C
    $2(p^2 - 2q - p'^2 - 2q' - pp')$
  • D
    $2(p^2 - 2q - p'^2 - 2q' - qq')$

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