This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
[{'content': 'In school health services the most impoant functionary should be - \nSelect and explain. \nA. School teacher, B. Health worker, C. Medical officer, D. Health assistant', 'role': 'user'}, {'content': "Answer: A \nExplanation: In school health services the most impoant functionary is school teacher. REF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 533", 'role': 'assistant'}]