This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Indicators of Health, Subject name: Social & Preventive Medicine
[{'content': 'Which of the following is a Mortality Indicator? \nSelect and explain. \nA. Life Expectancy, B. Notification Rate, C. DALY, D. Bed turn-over ratio', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. (a) Life Expectancy* Life Expectancy is a 'Positive mortality indicator'ALSO REMEMBER* DALY is a type of disability rate* Bed turn-over ratio is a type of heath care utilization rate", 'role': 'assistant'}]