If $\frac{x}{(1+x^2)(3-2x)} = \frac{Bx+C}{1+x^2} + \frac{A}{3-2x}$,then $C$ is

  • A
    $\frac{2}{3}$
  • B
    $\frac{1}{13}$
  • C
    $\frac{-1}{13}$
  • D
    $\frac{-2}{13}$

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