Explanation:

- Intensive farming is correct and is also known as industrial agriculture. This method aims to maximize output by using various technologies and methodologies, such as fertilizers, pesticides, and high-yield crop varieties.

- Plantation agriculture involves large-scale farming focused on a single crop, often for export. Common crops include tea, coffee, and rubber.

- Subsistence farming is when farmers grow food primarily to feed themselves and their families, with little surplus for sale.

- Shifting agriculture, also known as slash-and-burn farming, involves rotating fields to allow soil to regenerate. Farmers clear and cultivate land for a few years before moving on to a new area.