A key factor contributing to Andhra Pradesh’s HDI is:

Investment in social sectors
Strong economic growth
Decentralized governance
All of the above

The correct answer is: All of the above.

Andhra Pradesh has made significant progress in improving its human development index (HDI) in recent years. This is due to a number of factors, including investment in social sectors, strong economic growth, and decentralized governance.

Investment in social sectors, such as education, health, and nutrition, has helped to improve the lives of people in Andhra Pradesh. The state has made significant progress in reducing poverty and improving access to education and healthcare.

Strong economic growth has also contributed to Andhra Pradesh’s HDI. The state has experienced rapid economic growth in recent years, which has led to increased employment and income opportunities. This has helped to improve the standard of living of people in Andhra Pradesh.

Decentralized governance has also played a role in Andhra Pradesh’s HDI. The state has devolved power to local governments, which has helped to improve service delivery and accountability. This has helped to improve the lives of people in Andhra Pradesh.

In conclusion, Andhra Pradesh’s HDI has improved significantly in recent years due to a number of factors, including investment in social sectors, strong economic growth, and decentralized governance.