The correct options are
A The king had an army to protect the territory.
B New officials were appointed like the treasurer, chief justice and prison officer.
C Sabhas and Samitis were dissolved.
The king employed a number of officials, which was not evident during the early Vedic period. He appointed officials like Nyayadhisha, Dwarpala, treasurer, personal attendant, chief justice, prison officers and others. A large standing army was also maintained during this period to protect the king's territory and win battles for him. The art of warfare remained similar to the early vedic period with minor changes in terms of weapons.