The correct option is D Telugu
The Kakatiya kings adopted Telugu as the favoured language of the
court. Most of their inscriptions are in Telugu and they also called
themselves as Andhra Rajas. They also sought to bring together the
three regions in which Telugu was being spoken - the coastal
regions, Telangana region and Rayalaseema region. In this manner
the Kakatiya kings tried to build a Telugu regional conciousness.