If f(x) is a differentiable real valued ...

If f(x) is a differentiable real valued function satisfying `f''(x)-3f'(x) gt 3 AA x ge 0 and f'(0)=-1,` then `f(x)+x AA x gt 0` is

A

strictly increasing

B

strictly decreasing

C

non monotonic

D

data insufficient

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The correct Answer is:

A

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