Statement a is incorrect; Harshavardhana belonged to the Pushyabhuti dynasty of Thanesar, not the Maukhari dynasty. Statement b is correct; the Aihole inscription of Pulakesin II records his victory over Harsha. Statement c is correct; Banabhatta, Mayura, and Matanga Divakara were indeed prominent figures in Harsha's court. Statement d is correct assuming 'Nagamanjari' is a typographical error for 'Nagananda', as Harsha is credited with writing Ratnavali, Priyadarshika, and Nagananda. Given the option structure, this typo assumption is highly probable.