Mushroom cultivation is gaining popularity in Tamil Nadu due to:

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

Mushroom cultivation is gaining popularity in Tamil Nadu due to the following reasons:

• High demand: Mushrooms are a high-value crop that can be grown in a variety of climates. They are a good source of protein, fiber, and vitamins, and they are low in calories. As a result, there is a growing demand for mushrooms in both domestic and international markets.
• Short growing cycle: Mushrooms have a short growing cycle, which means that they can be harvested quickly and repeatedly. This makes them a good option for farmers who are looking for a high-yield crop.
• Indoor farming potential: Mushrooms can be grown indoors, which makes them a good option for farmers who do not have access to land or who want to grow crops year-round. Indoor farming also allows farmers to control the growing conditions, which can improve the quality and yield of the mushrooms.

In addition to these factors, the Tamil Nadu government has also been promoting mushroom cultivation as a way to increase agricultural productivity and create jobs in rural areas. The government has provided subsidies and training to farmers who are interested in growing mushrooms, and it has also set up a number of mushroom processing plants. As a result of these efforts, the area under mushroom cultivation in Tamil Nadu has increased significantly in recent years.