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': "All the following indicators are used to measure disability rates in a community except? \nSelect and explain. \nA. Sullivan's Index, B. Human Povey Index, C. Health Adjusted Life Expectancy, D. Disability Adjusted Life Year", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Human Povey Index", 'role': 'assistant'}]