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': 'Elements of primary health care include all of the following except – \nSelect and explain. \nA. Adequate supply of safe water and basic sanitation, B. Providing essential drugs, C. Sound referral system, D. Health Education', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Elements of Primary health care -\n\nEducation concerning prevailing health problems and the methods of preventing and controlling them\nPromotion of food supply and proper nutrition\nAn adequate supply of safe water and basic sanitation\nMaternal and child healths care including family planning.\nImmunization against major infectious disease\nPrevention and control of locally endemic disease.\nAppropriate t/t of common disease and injuries.\nProvision of essential drugs', 'role': 'assistant'}]