A.  (n-2)(2n)!/(n!)2

B.  (n-1)(2n)!/(n!)2

C.  (n+2)(2n)!/(n!)2

D.  (n+1)(2n)!/(n!)2

Correct Answer :
(n+1)(2n)!/(n!)2
Explanation :
No Explanation available for this question
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