Which three key dimensions are combined to form the Human Development Index (HDI), a composite measure of social progress?

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Rate of inequality reduction, human capital growth, and an overall composite scoreLife expectancy, educational attainment, and income levelBasic years of schooling, literacy rates among adults, and higher education completionWorkforce skill development and research and development activities

Explanation

The Human Development Index (HDI) integrates three fundamental aspects: life expectancy (longevity), education, and standard of living (income), to provide a comprehensive measure of social development.