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If alpha and beta are the roots of the e...

If `alpha and beta` are the roots of the equation `1+x+x^(2)=0`, then the matrix product `[{:(1, beta),(alpha,alpha):}][{:(alpha, beta),(1,beta):}]` is equal to :

A

`[{:(1,1),(1,2):}]`

B

`[{:(-1,-1),(-1,2):}]`

C

`[{:(1,-1),(-1,2):}]`

D

`[{:(-1,-1),(-1,-2):}]`

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