question_answer

If \[f(x)=\left\{ \begin{align}   & \ x+1,\ \text{when}\,x<2 \\  & 2x-1,\text{when }x\ge \text{2} \\ \end{align} \right.\], then \[f'(2)\] equals [MP PET 1997]

A)            0

B)            1

C)            2

D)            Does not exist