Q. The pair of amphoteric hydroxides is
A \(A l(O H)_{3}, L i O H\)
в \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Mg}(\mathrm{OH})_{2}\)
c \(B(\mathrm{OH})_{3}, \mathrm{Be}(\mathrm{OH})_{2}\)
(D) \(\mathrm{Be}(\mathrm{OH})_{2}, \mathrm{Zn}(\mathrm{OH})_{2}\)