The answer is B. Kohima.
Manipur, Sikkim, and Mizoram are all states in India, while Kohima is the capital of the state of Nagaland.
Manipur is a state in northeastern India. It is bordered by the states of Nagaland to the north, Assam to the east, Mizoram to the south, and Tripura to the southwest. The capital of Manipur is Imphal.
Sikkim is a state in northeastern India. It is bordered by the states of West Bengal to the west, Bhutan to the north, China to the east, and Nepal to the south. The capital of Sikkim is Gangtok.
Mizoram is a state in northeastern India. It is bordered by the states of Assam to the west, Tripura to the southwest, and Bangladesh to the south. The capital of Mizoram is Aizawl.
Kohima is the capital of the state of Nagaland in northeastern India. It is located in the Naga Hills, about 1,500 meters (4,900 feet) above sea level. The city has a population of about 100,000 people. Kohima is a major center for trade and commerce in the region. It is also home to a number of government offices and educational institutions.