The necessary condition to be maximum or minimum for the function is

1.	The necessary condition to be maximum or minimum for the function is
A.	\[f'(x)=0\]and it is sufficient
B.	\[f''(x)=0\]and it is sufficient
C.	\[f'(x)=0\]but it is not sufficient
D.	\[f'(x)=0\]and \[f''(x)=-ve\]
Answer» D. \[f'(x)=0\]and \[f''(x)=-ve\]

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The necessary condition to be maximum or minimum for the function is

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