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
Components of Human Development Life? 
Select and explain. 
A. Infant Moality, B. Literacy, C. Life expectancy at age one, D. Life expectancy at bih
D: Life expectancy at bih
Answer: D: Life expectancy at bih 
Explanation: Components of HDI:Life expectancy at bihKnowledgeStandard of Living.HDI ranges between 0 to 1.