GKFix MCQ Question

What is the correct expression for the solubility product of magnesium phosphate (Mg₃(PO₄)₂)?

• A. Ksp = [Mg²⁺][PO₄³⁻]
• B. Ksp = [Mg²⁺]²[PO₄³⁻]³
• C. Ksp = [Mg⁺]³[PO₄³⁻]²
• D. Ksp = [Mg²⁺]³[PO₄³⁻]²