The correct answer is: d) All of the above.
Article 371 of the Indian Constitution is a special provision that applies to the state of Arunachal Pradesh. It was inserted into the Constitution in 1972, after the state of Nagaland was granted statehood. The article gives Arunachal Pradesh a special status, which means that it has a certain degree of autonomy from the central government.
One of the main provisions of Article 371 is that it protects the religious and social practices of the people of Arunachal Pradesh. This means that the central government cannot interfere with the way that people in Arunachal Pradesh practice their religion or their customs.
Another important provision of Article 371 is that it protects the customary laws and land ownership of the people of Arunachal Pradesh. This means that the central government cannot interfere with the way that land is owned and used in Arunachal Pradesh.
Finally, Article 371 also restricts the transfer of land to non-tribals. This means that people who are not members of the indigenous tribes of Arunachal Pradesh cannot buy or own land in the state.
These provisions are designed to protect the unique culture and way of life of the people of Arunachal Pradesh. They also help to ensure that the state has a degree of autonomy from the central government.