Let $x = \alpha + \beta$,$y = \alpha \omega + \beta \omega^2$,and $z = \alpha \omega^2 + \beta \omega$,where $\omega$ is an imaginary cube root of unity. The product $xyz$ is equal to:

  • A
    $\alpha^2 + \beta^2$
  • B
    $\alpha^2 - \beta^2$
  • C
    $\alpha^3 + \beta^3$
  • D
    $\alpha^3 - \beta^3$

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