Rolle’s theorem is not applicable to function$f\left(x\right)=\left|x\right|$ in the interval$\left[-3,3\right]$  because

• A

  $f$ is continuous in$\left(-3,3\right)$

• B

  $f\left(3\right)=f\left(-3\right)$

• C

  $f\left(x\right)\ge 0\forall x$ in$\left[-3,3\right]$

• D

  $f$ is not derivable in$\left(-3,3\right)$