Consider the following orderings:
I. Na⁺ < Mg²⁺ < Al³⁺ < Si⁴⁺
II. Be < Mg < Ca < Sr
III. I < Br < Cl < F
IV. Al < Si < P < Cl

Which of these give(s) a correct trend in ionization energy?
A) III
B) II, IV
C) I, IV
D) I, III, IV
E) None of them