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Select and write the correct answer from the given alternatives in each of the following: If `alpha`, `beta` are non-real cube roots of unity, then `(2 - alpha) ( 2 - alpha^2) (2 - beta) (2 - beta^2)` is equal to

A

a) 49

B

b) 9

C

c) 1

D

d) none of these

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