The correct answer is c) Promote sustainability.
Crop diversification is the practice of growing a variety of crops in the same area. This can be done to reduce the risk of crop failure, improve soil fertility, and promote sustainability.
Crop failure can occur due to a number of factors, including pests, diseases, and weather conditions. By growing a variety of crops, farmers can reduce the risk of all of these factors affecting their entire crop. For example, if one crop is affected by a pest, the farmer may still have a good harvest from other crops.
Soil fertility can be improved by rotating crops. This means planting different crops in the same field each year. This helps to prevent the soil from becoming depleted of nutrients.
Crop diversification can also promote sustainability by reducing the use of pesticides and fertilizers. When farmers grow a variety of crops, they are less likely to use these chemicals, which can harm the environment.
In conclusion, crop diversification is a practice that can help to reduce the risk of crop failure, improve soil fertility, and promote sustainability.