Which technological advancement originated during the Gupta period in India?

The refinement of sugar was a technological breakthrough created during the Gupta period in India.

Explanation:

The Gupta Empire was an Indian kingdom established between the periods 320 - 550 AD. This period was marked by territorial expansion and advances in science, technology, engineering, art, literature, mathematics, astronomy, religion and philosophy.

One of the technological advances generated in that period and used until today was the refinement of sugar, starting from sugar cane.

As you may know, sugar cane is a plant from southern and southeastern Asia. The codadons of the Gupta empire, through the observation of this plant, realized its capacity to sweeten food making it much more tasty, in this way, they started the process of creating crystallized sugar, extracted from the cane. The product was a success and began to spread across the continent to China.

sonar maybe? ? i dont know the choices