The question asks which country has announced a $1 billion aid for the reconstruction of Nalanda University. Among the options provided, the correct answer is China.
To confirm this answer, we follow these steps:
- Identify the context, which is about foreign aid for educational development.
- Review historical and recent international contributions or announcements related to Nalanda University.
- Recognize China's role as a significant international player in providing infrastructure assistance and educational collaboration.
From the available options:
- Japan
- Singapore
- Malaysia
- China
The correct factual historical data corresponds with
China providing the financial assistance for the reconstruction of Nalanda University.