If f(x)=x^3+b x^2+c x+d and 0 < b^2 < c ...

If `f(x)=x^3+b x^2+c x+d` and `0 < b^2 < c ,` then `f(x)` is

A

(a) is bounded

B

(b) has a local maxima

C

(c) has a local minima

D

(d) is strictly increasing

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The correct Answer is:

D

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