The primary sector driving industrial development in Nagaland is:

Manufacturing
Mining
Agriculture-based industries
Tourism

The correct answer is: b) Mining

Mining is the primary sector driving industrial development in Nagaland. The state is rich in mineral resources, including coal, limestone, and uranium. The mining industry employs a significant number of people and contributes significantly to the state’s economy.

Manufacturing is also a significant sector of the Nagaland economy, but it is not the primary driver of industrial development. The state’s manufacturing sector is largely based on the processing of agricultural products, such as rice and tea.

Agriculture-based industries are also important in Nagaland, but they are not as significant as mining or manufacturing. The state’s agriculture sector is largely subsistence-based, and there is limited commercial production of agricultural products.

Tourism is a growing sector of the Nagaland economy, but it is not yet a major driver of industrial development. The state’s tourism industry is based on its natural beauty and cultural heritage.

In conclusion, the primary sector driving industrial development in Nagaland is mining. The state is rich in mineral resources, and the mining industry employs a significant number of people and contributes significantly to the state’s economy.