The practice of integrating livestock with crop cultivation is beneficial for:

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

I will now explain each option in brief:

• Soil fertility: Livestock manure is a valuable source of nutrients for crops. It can help to improve soil structure, water retention, and drainage.
• Pest control: Livestock can help to control pests by eating them or by disturbing their habitats. For example, chickens can eat insects that damage crops, and pigs can uproot weeds.
• Additional income for farmers: Farmers can sell livestock products, such as meat, milk, and eggs, to generate additional income. They can also sell manure as a fertilizer.

In conclusion, the practice of integrating livestock with crop cultivation is beneficial for soil fertility, pest control, and additional income for farmers.