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': 'Which of the following is NOT a socio economic indicator of health care? \nSelect and explain. \nA. Dependency Ratio, B. Family Size, C. Life Expectancy at Bih, D. Level of Unemployment', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Socio-economic indicators related to health include: Dependency ratio Rate of population increase Literacy rate Level of unemployment Family size Housing Per capita GNP Life expectancy is one of the moality indicators. Ref: Park, 21st Edition, Page 26.', 'role': 'assistant'}]