If $x = a, y = b\omega, z = c\omega^2$,where $\omega$ is a complex cube root of unity,then $\frac{x}{a} + \frac{y}{b} + \frac{z}{c} = $

  • A
    $3$
  • B
    $1$
  • C
    $0$
  • D
    None of these

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