If $f(x) = \begin{cases} x, & 0 \leq x \leq 1 \\ 2-x, & 1 < x \leq 2 \end{cases}$, then Rolle's theorem is not applicable to $f(x)$ because

  • A
    $f(x)$ is not defined everywhere on $[0, 2]$
  • B
    $f(x)$ is not continuous on $[0, 2]$
  • C
    $f(x)$ is not differentiable at $x = 1$
  • D
    $f(x)$ is not differentiable on $(0, 2)$

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