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': 'Which of the following is NOT a component of primary health care - \nSelect and explain. \nA. Adequate nutrition, B. Adequate housing, C. Safe water supply, D. Provision of essential drugs', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is `b' i.e., Adequate housing", 'role': 'assistant'}]