Let $a, b, c$ be non-zero real numbers such that $\int_0^3 {(3ax^2 + 2bx + c)\,dx} = \int_1^3 {(3ax^2 + 2bx + c)\,dx}$,then

  • A
    $a + b + c = 3$
  • B
    $a + b + c = 1$
  • C
    $a + b + c = 0$
  • D
    $a + b + c = 2$

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