This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health Planning and Management, Subject name: Social & Preventive Medicine
[{'content': 'Community development is block comprises of: \nSelect and explain. \nA. 70 villages and 70000 population, B. 100 villages and 100000 population, C. 500 villages and 500000 population, D. 1000 villages and 1000000 population', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans (b) 100 villages and 1,00,000 populationRef Park\'s PSM 20/783, 784"Under the community development programme, the rural areas of the country have been organized into Community Development Blocks --each Block comprising approximately 100 villages and a population of one lakh."', 'role': 'assistant'}]