GKFix MCQ Question

What is the correct expression for the solubility product of calcium hydroxide (Ca(OH)₂)?

• A. Ksp = [Ca²⁺][OH⁻]
• B. Ksp = [Ca²⁺]²[OH⁻]
• C. Ksp = [Ca⁺][OH⁻]²
• D. Ksp = [Ca²⁺][OH⁻]²