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: Dental
[{'content': 'Elements of primary health care include all except: \nSelect and explain. \nA. Safe water supply and sanitation, B. Treatment of common illness and injury, C. Essential Drugs, D. Referral services', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Elements of Primary Health Care:\xa0\nE - Health Education (health problem & control).\xa0\nL - Locally Endemic disease (prevention & control).\xa0\nE - Essential drugs.\xa0\nM - MCH (Maternal & Child Health) including FP.\xa0\nE - EPI (Immunization against 6 Vaccine Preventable Diseases).\xa0\nN - Nutrition/ food supply.\xa0\nT - Treatment of common illness & injury.\xa0\nS - Safe water supply & Sanitation.', 'role': 'assistant'}]