The term independent of x in (1+x)^m (1+...

The term independent of x in `(1+x)^m (1+1/x)^n` is

A

`C_(0)""^(2)+ 2C_(1)""^(2)+ 3*C_(2)""^(2)+...+(n+1)C_(n)""^(2)`

B

`(C_(0) + C_(1) + …+C_(n) )^(2)`

C

`C_(0) + C_(1)""^(2) + … + C_(n))^(2)`

D

none of these

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The correct Answer is:

C

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