The correct answer is: c) Autonomous District Councils (ADCs).
The Sixth Schedule of the Constitution of India provides for the administration of tribal areas in the states of Assam, Meghalaya, Tripura and Mizoram. It provides for the formation of Autonomous District Councils (ADCs) in these areas with a view to safeguard the interests of the tribal people. The ADCs are responsible for a wide range of subjects, including education, health, agriculture, forests, and land revenue.
Panchayats are local self-government institutions in rural areas. They are responsible for a variety of functions, including agriculture, rural development, education, health, and sanitation. Municipal bodies are local self-government institutions in urban areas. They are responsible for a variety of functions, including water supply, sanitation, roads, and public transport. State Legislative Assemblies are the legislative bodies of the states of India. They are responsible for making laws for the state.