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': 'Bajaj committee proposed: \nSelect and explain. \nA. MPHW, B. Rural health service, C. Integrated health service, D. Manpower and planning', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Manpower and planning', 'role': 'assistant'}]