The correct answer is: a) Adi.
The Adi people are an ethnic group native to the Indian state of Arunachal Pradesh. They are the largest tribe in Arunachal Pradesh, accounting for about 40% of the state’s population. The Adi people are known for their traditional culture and their resistance to British rule.
The Anglo-Abor Wars were a series of conflicts between the British and the Adi people that took place in the late 19th and early 20th centuries. The wars were fought over the British attempt to control the Adi people and their territory. The Adi people resisted British rule and fought a series of guerrilla wars against the British. The wars ended with the British signing a treaty with the Adi people in 1920.
The other options are incorrect because they are not the Adi people. The Nyishi people are an ethnic group native to the Indian state of Arunachal Pradesh. The Apatani people are an ethnic group native to the Indian state of Arunachal Pradesh. The Monpa people are an ethnic group native to the Indian state of Arunachal Pradesh.