The points of discontinuity of the function $f(x) = \begin{cases} \frac{1}{x-1} & 0 \leq x \leq 2 \\ \frac{x+5}{x+3} & 2 < x \leq 4 \end{cases}$ in its domain are:

  • A
    $x=2$ only
  • B
    $x=1, x=2$
  • C
    $x=4$ only
  • D
    $x=0, x=2$

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