This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Government of Pak has accepted iron fortification to reduce prevalence of anemia; it has recently been decided to fortify \nSelect and explain. \nA. Salt, B. Skimmed dried milk, C. Sugar, D. Flour', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]