Limited irrigation facilities in Nagaland primarily restrict the cultivation of:

Rice
Wheat
Vegetables
All of the above

The correct answer is: d) All of the above.

Nagaland is a state in northeastern India with a population of over 1.9 million people. The state is located in the Eastern Himalayas and has a mountainous terrain. The climate in Nagaland is tropical, with a monsoon season that lasts from June to September. The average annual rainfall in Nagaland is about 2,000 mm.

The main crops grown in Nagaland are rice, maize, millet, and vegetables. Rice is the most important crop, followed by maize. Millet and vegetables are also important crops, but they are not as widely grown as rice and maize.

The main reason for the limited cultivation of rice, wheat, and vegetables in Nagaland is the lack of irrigation facilities. The state has a very low percentage of irrigated land, which means that most farmers rely on rain-fed agriculture. This makes it difficult to grow crops that require a lot of water, such as rice and wheat.

The lack of irrigation facilities is also a major problem for vegetable growers. Vegetables are a high-value crop, but they are also very sensitive to water shortages. This means that vegetable growers in Nagaland often have to face low yields and high production costs.

The government of Nagaland has been trying to improve the irrigation situation in the state. However, progress has been slow due to the high cost of irrigation projects. The government is also trying to promote the cultivation of drought-tolerant crops, such as millet and sorghum.

Despite the challenges, agriculture is still the main source of livelihood for most people in Nagaland. The state government is committed to improving the agricultural sector and helping farmers to increase their productivity.