The Human Development Index is a composite index that measures development in terms of human well-being rather than only income. It includes three core dimensions: a long and healthy life, knowledge and a decent standard of living. A long and healthy life is represented by indicators such as life expectancy at birth. Hence, among the options given, โa long and healthy lifeโ directly corresponds to one of the HDI dimensions and is therefore correct.
Option A:
Option A is incorrect because military strength is not a part of HDI and is not used to assess human development. HDI focuses on human welfare, not military capability or strategic power. Therefore, this option is unrelated to HDIโs core dimensions.
Option B:
Option B is correct as HDI uses health as a central dimension, typically measured through life expectancy. A long and healthy life reflects the ability of people to live free from preventable diseases and premature death, which is a key aspect of development.
Option C:
Option C is incorrect because religious diversity may have social importance but is not an explicit dimension in HDI. The index does not compare countries based on religion or cultural variety.
Option D:
Option D is incorrect as political stability, though important for development, is not directly used as one of the three HDI dimensions. HDIโs focus is on health, education and income rather than political variables.
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