Correct answer: D. Harisena
Explanation: The Prayag Prashasti was composed by Harisena, who served as an important court poet and official under Samudragupta. It is an inscription praising Samudragupta’s achievements, military campaigns, relationships with other rulers, and imperial claims. The inscription is associated with the Ashokan pillar at Prayag, present-day Prayagraj, and is one of the most valuable sources for reconstructing Samudragupta’s reign.
The answer follows from identifying the author of this Gupta-period inscription. Kalidasa was a celebrated Sanskrit poet connected with the Gupta age, but he did not compose the Prayag Prashasti. Banabhatta belonged to the court of Harshavardhana, while Abul Fazl wrote in the Mughal period. Harisena, in contrast, was directly connected with Samudragupta and composed the eulogy. Therefore, option D is correct. The key pairing to remember is Samudragupta, Harisena, and Prayag Prashasti.