Some regions in Arunachal Pradesh had zamindars who were:

The correct answer is: a) Local landlords.

Zamindars were local landlords who held large tracts of land in India under the British Raj. They were responsible for collecting taxes from the peasants who lived on their land and for maintaining law and order in their areas.

The other options are incorrect because:

• Tribal headmen are the leaders of indigenous tribes in India. They are responsible for settling disputes, resolving conflicts, and representing their tribes to the outside world.
• British-appointed officials were appointed by the British government to administer different parts of India. They were responsible for collecting taxes, maintaining law and order, and promoting economic development.
• Elected representatives are people who are elected by the people to represent them in government. They are responsible for making laws, approving budgets, and overseeing the government’s activities.