If 1, omega,(omega)^2,.......omega^(n-1)...

If `1, omega,(omega)^2,.......omega^(n-1)`are the nth roots of unity,then`(2-omega)(2-(omega)^2)…...(2-(omega)^(n-1))` is equal to`2^n`

A

`A.2^n`

B

`B.2^n-1`

C

`C.2^n+1`

D

`D.1`

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