If $f(x) = \log_{(x^2-2x+1)}(x^2-3x+2)$, $x \in R - \{1, 2\}$ and $x \neq 0$, then $f'(3) =$

  • A
    $1$
  • B
    $0$
  • C
    $\log_e 4$
  • D
    $\log_4 e$

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