The Department of Horticulture in Nagaland focuses on:

Crop improvement
Extension services
Marketing support
All of the above

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

The Department of Horticulture in Nagaland is a government department that is responsible for the development and promotion of horticulture in the state. The department focuses on a number of areas, including crop improvement, extension services, and marketing support.

Crop improvement is the process of developing new varieties of crops that are more productive and resistant to pests and diseases. The department conducts research on new crop varieties and provides farmers with information on how to grow them.

Extension services are the activities that are carried out to help farmers improve their production and marketing practices. The department provides farmers with training on new technologies and practices, as well as advice on how to improve their marketing skills.

Marketing support is the provision of assistance to farmers in marketing their produce. The department helps farmers to find buyers for their produce, and also provides them with information on prices and market trends.

The Department of Horticulture in Nagaland plays an important role in the development of the state’s horticulture sector. The department’s activities have helped to increase the production of horticultural crops, improve the quality of these crops, and increase the incomes of farmers.