Who of the following among the Nine Gems of Chandragupta was associated with Astrology?

Who among the following is not associated with medicine in ancient India?

Who among the following composed the 'Prayag Prashasti' of Samudragupta ?

The Allahabad Pillar inscription is associated with which one of the following?

Who among the following Gupta Kings had another name Devagupta?

Who among the following is known for his work on medicine during the Gupta period?