The correct options are
A The people of janapadas had a leader called as Rajan.
D Around 2500 years ago, the Raja was the protector of the territory, not merely the leader of the people.
During the age of the janapadas, Rajas were chosen by the jana - people. During those times, the Rajas were leader of the people and protector of cattle. But this began to change as the janapadas gradually became mahajanpadas. Men who performed big sacrifices were recognised as Rajas.