Let $f: R \rightarrow R$ be given by $f(x) = |x^{2} - 1|$, $x \in R$. Then:

  • A
    $f$ has a local minimum at $x = \pm 1$ but no local maximum.
  • B
    $f$ has a local maximum at $x = 0$ but no local minimum.
  • C
    $f$ has a local minima at $x = \pm 1$ and a local maxima at $x = 0$.
  • D
    $f$ has neither a local maxima nor a local minima at any point.

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