If the only point of inflection of the f...

If the only point of inflection of the function `f(x)-(x-a)^m(x-b)^n` , `m, n e N` and `m!=n` is at `x=a` then

A

m, n are even

B

m is odd n is even

C

m is even, n is odd

D

m, n are odd

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The correct Answer is:

B

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