If f(x) = (log (1+ax)-log (1-bx))/(x) fo...

If `f(x) = (log (1+ax)-log (1-bx))/(x)` for `x ne 0 and f(0) = k ` and f(x) is continuous at x = 0 then k is equal to

A

a+b

B

a-b

C

a

D

b

Verified by Experts

The correct Answer is:

A

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