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': 'Simplest measure of moality ? \nSelect and explain. \nA. Crude death rate, B. Case fatality rate, C. Propoional moality rate, D. Specific death rate', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Crude death rate o The simplest measure of moality is the crude death rate.", 'role': 'assistant'}]