If f(x)={((x-5),"for x"le1),(4x^2-9,"for...

If `f(x)={((x-5),"for x"le1),(4x^2-9,"for 1"ltxlt2),(3x+4,"for x"ge2):}`, then `f'(2^+)` is equal to

A

0

B

2

C

3

D

4

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The correct Answer is:

C

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