The correct answer is: d) All of the above.
The Vishnukundinas were a dynasty that ruled over parts of Andhra Pradesh and Telangana from the 3rd to the 6th centuries CE. They were patrons of art and architecture, and their contributions include rock-cut cave temples, copperplate inscriptions, and the development of irrigation systems.
Rock-cut cave temples: The Vishnukundinas built a number of rock-cut cave temples, including the Undavalli Caves and the Bhairavakonda Caves. These temples are decorated with sculptures and reliefs depicting Hindu deities and scenes from Hindu mythology.
Copperplate inscriptions: The Vishnukundinas also issued a number of copperplate inscriptions, which are documents that are inscribed on copper plates. These inscriptions provide information about the history of the Vishnukundina dynasty, as well as their achievements in art, architecture, and administration.
Development of irrigation systems: The Vishnukundinas were also responsible for the development of irrigation systems. They built a number of canals and reservoirs, which helped to improve agriculture in the region.
The Vishnukundinas were a significant dynasty that made a number of contributions to the history and culture of Andhra Pradesh and Telangana. Their contributions include rock-cut cave temples, copperplate inscriptions, and the development of irrigation systems.