Answer:
developments in astronomy and of the concept of zero
Explanation:
The most associated accomplishments of the Gupta Empire is the developments in astronomy and of the concept of zero.
The other achievements of the Gupta Empire are present in different fields include sculpture, war, literature, architecture, and painting. All the achievements named the era as India's "golden age."
Hence, the correct option is "developments in astronomy and of the concept of zero".
