If $f(x) = \begin{cases} x^{3}-3x+2, & x < 2 \\ x^{3}-6x^{2}+9x+2, & x \geq 2 \end{cases}$,then:

  • A
    $\lim _{x \rightarrow 2} f(x)$ does not exist
  • B
    $f$ is not continuous at $x=2$
  • C
    $f$ is continuous but not differentiable at $x=2$
  • D
    $f$ is continuous and differentiable at $x=2$

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