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If the three functions f(x),g(x) and h(x...

If the three functions `f(x),g(x)` and `h(x)` are such that `h(x)=f(x).g(x)` and `f'(x).g'(x)=c`, where c is a constant then `(f^('')(x))/(f(x))+(g^('')(x))/(g(x))+(2c)/(f(x)*g(x))` is equal to

A

`(h(x))/(h''(x))`

B

`h'(x).h''(x)`

C

`(h(x))/(h'(x))`

D

`(h^('')(x))/(h(x))`

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The correct Answer is:
D
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