If $a, b, c$ are distinct real numbers and $a^3 + b^3 + c^3 = 3abc$,then the equation $ax^2 + bx + c = 0$ has two roots,out of which one root is

  • A
    $b/a$
  • B
    $c/a$
  • C
    $-b/a$
  • D
    $0$

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