Who among the following wrote a treatise on medical science during the Gupta period?

What was the leader of a caravan or corporate group of traveling merchants called during the Gupta period?

The decimal numeral system, including the concept of zero, flourished in India during which dynasty?

With reference to the Gupta period, consider the following statements: 1. Prayaga emerged as an important political and ceremonial centre during the Gupta period. 2. Samudragupta's Prayaga Prashasti was composed by Harishena, a court poet who also held official administrative posts. Which of the statements given above is/are correct?