If $f(x) = |x - 2|$,then

  • A
    $\mathop {\lim }\limits_{x \to 2^+} f(x) \ne 0$
  • B
    $\mathop {\lim }\limits_{x \to 2^-} f(x) \ne 0$
  • C
    $\mathop {\lim }\limits_{x \to 2^+} f(x) \ne \mathop {\lim }\limits_{x \to 2^-} f(x)$
  • D
    $f(x)$ is continuous at $x = 2$

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