The correct answer is: d) Sixth Schedule
The Sixth Schedule of the Indian Constitution provides for special provisions for the administration of tribal areas in the states of Assam, Meghalaya, Tripura, and Mizoram. The Schedule includes provisions for the establishment of autonomous districts and councils, the appointment of tribal advisory councils, and the protection of tribal customary laws and land rights.
Article 370 of the Indian Constitution grants special status to the state of Jammu and Kashmir. Article 371G of the Indian Constitution grants special status to the state of Nagaland. The Fifth Schedule of the Indian Constitution provides for special provisions for the administration of tribal areas in the states of Andhra Pradesh, Telangana, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Odisha, Rajasthan, and West Bengal.
The Sixth Schedule was adopted in 1956, and it has been amended several times since then. The most recent amendment was in 2012. The Sixth Schedule has been praised for its success in protecting tribal rights and culture. However, it has also been criticized for being too complex and for not being effective in addressing all of the problems facing tribal people in the Northeast.