Let f : (- 1 , 1) to R be a differenti...

Let ` f : (- 1 , 1) to R ` be a differentiable function with f(0) = - 1 and f' (0) = 1
Let ` g (x) = [ f ( 2 f (x) + 2) ]^(2) `. Then g'(0) is equal to a)`-2` b)4 c)`-4` d)0

A

`-2`

B

4

C

`-4`

D

0

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The correct Answer is:

C

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