The correct option is C Both A and B
Also known as Vrjii, Vajji was an alliance of neighbouring clans including Licchavis and one of the principle Mahajanpadas. They ruled the Mithila region in the Northern Bihar and had Vaishali as their capital. Their administration was called "Vajji Sangha" or "Vajji Gana Parishad". Eminent people were chosen from each district, called "Khanda" as the representatives of the government. They were called "gana mukhyas", and the chairman of the council was called "ganapramukh" but often was referred to as the king.