Arunachal Pradesh’s HDI has shown a trend of:

Rapid improvement
Steady improvement
Stagnation
Decline

The correct answer is (a) Rapid improvement.

Arunachal Pradesh’s HDI has shown a steady improvement over the past few years. In 2015, the state’s HDI was 0.619, which is below the national average of 0.634. However, the state’s HDI has been increasing at a faster rate than the national average. In 2010, the state’s HDI was 0.567, which means that it has increased by 9.2% in five years.

The state’s rapid improvement in HDI can be attributed to a number of factors, including economic growth, investment in education and health, and social development. The state’s economy has been growing at a healthy rate in recent years, which has led to an increase in employment and incomes. The state has also invested heavily in education and health, which has led to an improvement in the quality of life for its citizens. Finally, the state has made significant progress in social development, such as reducing poverty and improving gender equality.

Arunachal Pradesh’s rapid improvement in HDI is a positive sign for the state’s future. The state is well on its way to achieving its goal of becoming a developed state by 2020.

(b) Steady improvement: This option is incorrect because Arunachal Pradesh’s HDI has shown a trend of rapid improvement, not steady improvement.

(c) Stagnation: This option is incorrect because Arunachal Pradesh’s HDI has shown a trend of improvement, not stagnation.

(d) Decline: This option is incorrect because Arunachal Pradesh’s HDI has shown a trend of improvement, not decline.