The government of Nagaland promotes dairy development through:

Cross-breeding programs
Subsidies
Establishment of milk processing units
All of the above

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

The government of Nagaland promotes dairy development through a number of initiatives, including cross-breeding programs, subsidies, and the establishment of milk processing units.

Cross-breeding programs aim to improve the quality of livestock by breeding local animals with high-quality breeds from other parts of the world. This can lead to increased milk production, improved resistance to disease, and better meat quality.

Subsidies are financial assistance provided by the government to farmers to help them cover the costs of production. This can include the cost of feed, veterinary care, and other expenses. Subsidies can help to make dairy farming more profitable and encourage farmers to invest in their businesses.

The establishment of milk processing units helps to add value to milk and create jobs in the dairy industry. Milk processing units can produce a variety of products, such as milk powder, cheese, and yogurt. This can help to increase the demand for milk and improve the livelihoods of dairy farmers.

Overall, the government of Nagaland is committed to promoting dairy development through a number of initiatives. These initiatives are designed to improve the quality of life of dairy farmers and increase the production of milk in the state.