The correct answer is: All of the above.
Mizoram has a relatively high HDI (Human Development Index) compared to other states in India. This is due to a number of factors, including a strong emphasis on education, high literacy rates, and good health infrastructure.
Mizoram has a literacy rate of over 90%, which is higher than the national average of 74%. The state also has a high number of schools and colleges, and education is compulsory for all children up to the age of 14. This emphasis on education has helped to create a well-educated population, which is essential for economic development.
Mizoram also has a good health infrastructure. The state has a number of hospitals and clinics, and the government provides free healthcare to all citizens. This has helped to improve the health of the population and reduce the number of deaths from preventable diseases.
In addition to education and health, Mizoram also has a number of other factors that contribute to its high HDI. These include a low crime rate, a strong social safety net, and a stable political environment. All of these factors contribute to a high quality of life for the people of Mizoram.