Final answer:
The Human Development Index (HDI) is determined by evaluating three dimensions: knowledge, standard of living, and life expectancy, through indicators like educational attainment, gross national income per capita, and average lifespan, respectively.
Step-by-step explanation:
How is the Human Development Index (HDI) determined?
The Human Development Index (HDI) is determined by assessing three key dimensions: knowledge, standard of living, and life expectancy. These dimensions are reflected in indicators such as educational attainment, gross national income (GNI), and average lifespan. Specifically, the HDI evaluates adult literacy rates, combined primary, secondary, and post-secondary enrollment for education, life expectancy at birth to assess health, and GNI per capita based on purchasing power parity (PPP) for standard of living. This approach enables a holistic view of human development in a nation encompassing both economic and social measures.
Therefore, the correct answer to the question is D. Knowledge, standard of living, and life expectancy.