22. What is the formula for the compound that crystallizes with a cubic closed packed array of sulfur ions, and that contains zinc ions in 12.5% of the tetrahedral holes and aluminum ions in 50% of the octahedral holes?
(A) ZnAISA
(B) ZnA12S4
(C) ZnAlS2
(D) ZnAl2S2
(E) ZnAl4S8