Let $f(x) = \min \{1, 1 + x \sin x \}$ for $0 \leq x \leq 2\pi$. If $m$ is the number of points where $f$ is not differentiable and $n$ is the number of points where $f$ is not continuous,then the ordered pair $(m, n)$ is equal to

  • A
    $(2, 0)$
  • B
    $(1, 0)$
  • C
    $(1, 1)$
  • D
    $(2, 1)$

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