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': 'Best indicator for burden of disease ? \nSelect and explain. \nA. Incidence, B. Crude death rate, C. Cause specific death rate, D. Propoional moality rate', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Propoional moality rate", 'role': 'assistant'}]