The correct answer is (d). Wokha is not a major hub for connecting to other states by road.
Dimapur is the commercial hub of Nagaland and is well-connected to other states by road. Kohima is the capital of Nagaland and is also well-connected to other states by road. Mokokchung is a major town in Nagaland and is connected to other states by road. Wokha is a town in Nagaland that is not as well-connected to other states by road as the other three towns.
Dimapur is located in the central part of Nagaland and is connected to other states by National Highway 39. Kohima is located in the northern part of Nagaland and is connected to other states by National Highway 29. Mokokchung is located in the eastern part of Nagaland and is connected to other states by National Highway 39. Wokha is located in the southern part of Nagaland and is connected to other states by National Highway 702.