When the eigenvalues of a b A = 0 d are 2, = 0 and 2, = 2, what are the possible values of a and d? (Select all that apply.) O a = 0 and d = 0 O a = 0 and d = 2 la = 2 and d = 2 O a = -2 and d = 0 O a = 0 and d = -2 O a = 2 and d = 0

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