The correct answer is: c) 2 million.
Nagaland is a state in northeastern India. It is the 16th largest state in India by area and the 29th most populous state with a population of 1,986,926 as of 2011. The capital and largest city is Kohima.
The state is home to a number of different ethnic groups, including the Nagas, who are the majority population. The Nagas are a diverse group of people with their own languages, cultures, and traditions.
Nagaland is a beautiful state with a rich history and culture. It is a popular tourist destination, known for its stunning scenery, its unique culture, and its friendly people.
The other options are incorrect because they do not reflect the actual population of Nagaland. Option a) is too low, while options b) and d) are too high.