Correct Answer: Kannauj

Solution : The correct option is Kannauj .

Kannauj played a significant role in the conflicts among the Gurjara-Pratihara, Rashtrakuta, and Pala dynasties during the mediaeval period in India. Kannauj, located in present-day Uttar Pradesh, was a strategic and prosperous city that served as a major political and cultural centre. The city's prosperity was linked to its position as a key trade centre and its control over the Ganges River.