GKFix MCQ Question

What is the correct sequence of steps in an iodometric titration?

• A. Liberation of I₂ → direct titration with I₂ → estimation of reducing agent
• B. Direct titration of I₂ with Na₂S₂O₃ → estimation of oxidizing agent
• C. Titration of KI with Na₂S₂O₃ → liberation of I₂
• D. Oxidizing agent + excess KI → liberation of I₂ → titration with Na₂S₂O₃