If f(x) = {{:((log(1+2ax)-log(1-bx))/(x)...

If `f(x) = {{:((log(1+2ax)-log(1-bx))/(x)",",x ne 0),(" "k",",x = 0):}` is continuous at x = 0, then k is equal to

A

2a + b

B

2a - b

C

b - 2a

D

a + b

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The correct Answer is:

A

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