This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
[{'content': 'Human milk has all except - \nSelect and explain. \nA. High protein, B. Iron, C. Vitamin C, D. Vitamin A', 'role': 'user'}, {'content': "Answer: A \nExplanation: Human milk do not contain iron. It contain protein, but not high protein . REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 582", 'role': 'assistant'}]