If $f(3) = 6$ and $f'(3) = 2$,then $\mathop {\text{Limit}}\limits_{x \to 3} \frac{x f(3) - 3 f(x)}{x - 3}$ is given by:

  • A
    $6$
  • B
    $4$
  • C
    $0$
  • D
    None of these

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