GKFix MCQ Question

What is the correct expression for the solubility product of cadmium sulfide (CdS)?

• A. Ksp = [Cd²⁺]²[S²⁻]
• B. Ksp = [Cd⁺][S²⁻]
• C. Ksp = [Cd³⁺][S²⁻]
• D. Ksp = [Cd²⁺][S²⁻]