The value of 2^n [1.3.5....(2n - 3)(2n ...

The value of `2^n [1.3.5....(2n - 3)(2n - 1)` is

A

`A.frac{(2^n)!}{n!}`

B

`B.frac{(2^n)!}{2^n}`

C

`C.frac{n!}{(2n!)}`

D

`D.(2n)!`

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