The correct answer is: d) Karbi Anglong
Karbi Anglong is an administrative division in the Indian state of Assam. It is one of the three autonomous districts of Assam, the others being Bodoland Territorial Area District and Dima Hasao. Karbi Anglong is located in the north-eastern part of Assam, and is bordered by Nagaland to the north, Meghalaya to the south, and the Brahmaputra River to the west. The district has a population of over 1.2 million people, and the majority of the population are Karbis, an indigenous people of Assam. The district headquarters is Diphu.
Barak Valley is a geographical region in the Indian state of Assam. It is located in the south-eastern part of the state, and is bordered by Bangladesh to the south, Meghalaya to the west, and the Brahmaputra River to the north. The valley is home to three districts: Cachar, Karimganj, and Hailakandi. The majority of the population of Barak Valley are Bengalis, and the region is known for its tea plantations.
Bodoland is an autonomous region in the Indian state of Assam. It is located in the north-eastern part of the state, and is bordered by Nagaland to the north, Meghalaya to the south, and the Brahmaputra River to the west. The region has a population of over 3 million people, and the majority of the population are Bodos, an indigenous people of Assam. The region’s headquarters is Kokrajhar.
Upper Assam is a geographical region in the Indian state of Assam. It is located in the north-eastern part of the state, and is bordered by Arunachal Pradesh to the north, Nagaland to the east, and the Brahmaputra River to the south. The region is home to seven districts: Dibrugarh, Tinsukia, Sivasagar, Jorhat, Golaghat, Sonitpur, and Lakhimpur. The majority of the population of Upper Assam are Assamese, and the region is known for its tea plantations.