This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
[{'content': 'Component of Human Development Life \nSelect and explain. \nA. Infant Moality, B. Literacy, C. Life expectancy at age one, D. Life expectancy at bih', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Components of HDI: Life expectancy at bih Knowledge Standard of Living. HDI ranges between 0 to 1. Ref: Park 24th edition. Pg: 17', 'role': 'assistant'}]