Out of the following outer electronic configurations of atoms, the highest oxidation state is achieved by which one ?
(A) \((\mathrm{n}-1) \mathrm{d}^{8} \mathrm{~ns}^{2}\)
(B) \((n-1) d^{5} n s^{2}\)
(C) \((n-1) d^{3} n s^{2}\)
(D) \((n-1) d^{5} n s^{1}\)
