Let f be two differentiable function sat...

Let f be two differentiable function satisfying `f(1)=1,f(2)=4, f(3)=9`, then

A

`f"(x)=2, AA x epsilon (r)`

B

`f'(x)=5=f"(x)`, for some `x epsilon(1,3)`

C

there exists at least one `x epsilon (1,3)` such that `f"(x)=2`

D

None of the above

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The correct Answer is:

C

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