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': 'Dose of vitamin A prophytaxis given in age group 1-6 years - \nSelect and explain. \nA. 2000 iu, B. 20000 iu, C. 200000 iu, D. 100000 iu', 'role': 'user'}, {'content': "Answer: C \nExplanation: For 1-6years of children 200,000IU of vitamin A is given orally every 6 months. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 569", 'role': 'assistant'}]