The function $f(x) = \begin{cases} x + 2, & 1 \le x \le 2 \\ 4, & x = 2 \\ 3x - 2, & x > 2 \end{cases}$ is continuous at

  • A
    $x = 2$ only
  • B
    $x \le 2$
  • C
    $x \ge 2$
  • D
    None of these

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