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': 'Egg is deficient in- \nSelect and explain. \nA. Vitamin B, B. Vitamin C, C. Fat, D. Proteins', 'role': 'user'}, {'content': "Answer: B \nExplanation: Egg contains all nutrients except carbohydrate and Vitamin ‘C'\nFood items as Poor Sources of nutrients :\n\n\nMilk is a poor source of Vitamin C and Iron.\nMilk is a poor source of Calcium.\nMilk is a poor source of Carbohydrates.\n\n\nFood items as Rich Sources of nutrients :\n\n\nHalibut Liver Oil is richest source of Vitamin A and Vitamin D.\nIndian Gooseberry (amla) is richest source of Vitamin C.\nGingelly seeds are richest source of Vitamin Bj (Thiamine).\nSheep liver is richest source of Vitamin B2 (Riboflavin).", 'role': 'assistant'}]