The correct answer is: b) Kohima.
Kohima is the capital of Nagaland, India. It is located in the Naga Hills, and is the most populous city in the state. Kohima is a major center for education and culture, and is home to several universities and colleges. The city is also a popular tourist destination, due to its natural beauty and historical significance.
Dimapur is the largest city in Nagaland, but it is not the capital. Dimapur is located in the Dimapur district, and is a major commercial and industrial center. The city is home to a number of industries, including textiles, food processing, and pharmaceuticals. Dimapur is also a major transportation hub, and is served by an international airport.
Mokokchung is a city in Nagaland, India. It is the headquarters of Mokokchung district. Mokokchung is located in the central part of the state, at an altitude of 1,525 meters (4,997 feet). The city has a population of about 100,000 people.
Tuensang is a city in Nagaland, India. It is the headquarters of Tuensang district. Tuensang is located in the northeastern part of the state, at an altitude of 1,829 meters (5,999 feet). The city has a population of about 50,000 people.