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': 'The proportional mortality rate is \nSelect and explain. \nA. Number of death during that year, B. Number of death in one month, C. Number of death due to particular a cause, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Note: Proportional mortality rate measures the burden of disease.\nOthers are crude death rates.', 'role': 'assistant'}]