If |x| lt 1 , then the coefficients of x...

If `|x| lt 1 `, then the coefficients of `x^(n)` in the
expansion of `(1 + x + x^(2) + x^(3) …)^(2)` , is

A

1

B

n

C

`n+1`

D

None of these

Verified by Experts

The correct Answer is:

C

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