The correct answer is (b). Harisena composed the Mandsaur Prasasti.
The Mandsaur Prasasti is a Sanskrit inscription that was composed in the 7th century CE by Harisena, the court poet of the Gurjara-Pratihara king Yashovarman. The inscription is a eulogy to Yashovarman and his achievements. It is one of the most important sources of information about the Gurjara-Pratihara dynasty.
Vasul was a 6th-century CE Indian poet who is best known for his work, the Vasucarita.
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