The correct answer is: d) All of the above.
The Human Development Index (HDI) is a composite statistic of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development. A higher HDI indicates a higher standard of living.
Comparing Sikkim’s HDI over time can help track the progress or setbacks in the state’s development. It can also help identify the factors that have contributed to these changes, such as changes in government policies, external factors like climate change, or other factors.
For example, Sikkim’s HDI has increased significantly over the past few decades. This is likely due to a number of factors, including the state’s rapid economic growth, investments in education and healthcare, and improvements in infrastructure.
However, Sikkim’s HDI is still lower than the national average. This suggests that there is still room for improvement in the state’s development. By comparing Sikkim’s HDI over time, we can identify the areas where the state needs to focus its efforts in order to improve the lives of its people.