GKFix MCQ Question

What is the solubility of Fe(OH)3 if Ksp = 2.79 × 10–39?

• A. 1.9 × 10–10 M
• B. 1.9 × 10–9 M
• C. 1.9 × 10–11 M
• D. 1.9 × 10–8 M