In a crystalline solid with the formula $AB_2O_4$,the oxide ions are arranged in a cubic close-packed $(CCP)$ lattice,while the cations $A$ are present in tetrahedral voids and cations $B$ are present in octahedral voids. What are the percentages of tetrahedral and octahedral voids occupied by $A$ and $B$ respectively?
- A$12.5 \%$ and $50 \%$
- B$25 \%$ and $50 \%$
- C$50 \%$ and $25 \%$
- D$12.5 \%$ and $25 \%$
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