The correct answer is option 'C': Bangalore method.

The Bangalore method of composting is a type of aerobic composting technique that is widely used in India. In this method, the decomposition of anaerobic waste takes place through the process of aerobic decomposition, which requires the presence of oxygen.

Here is a detailed explanation of the Bangalore method of composting:

1. Introduction to the Bangalore method:
The Bangalore method is a decentralized composting technique that can be implemented in small-scale composting units, such as households, communities, or institutions. It is named after the city of Bangalore in India, where it was first developed.

2. Process of the Bangalore method:
The Bangalore method involves the following steps:

- Waste segregation: The first step is to segregate the waste into organic and inorganic components. Only the organic waste, such as kitchen waste, vegetable peels, garden waste, etc., is used for composting.

- Shredding: The organic waste is shredded into smaller pieces to increase its surface area, which facilitates faster decomposition.

- Layering: The shredded organic waste is then layered with dry leaves or other carbon-rich materials like straw or sawdust. This helps in balancing the carbon-to-nitrogen ratio in the compost pile, which is essential for the composting process.

- Moisture management: Adequate moisture is necessary for the composting process. The compost pile should be kept moist but not overly wet. Regular monitoring and watering may be required to maintain the desired moisture level.

- Turning: The compost pile needs to be turned periodically to ensure proper aeration. This allows oxygen to reach all parts of the pile, promoting aerobic decomposition. The turning frequency may vary depending on the composting conditions and the type of waste being composted.

- Curing: After a certain period of active composting, the compost pile is left undisturbed for a curing period. During this time, the compost undergoes further decomposition and stabilizes.

3. Advantages of the Bangalore method:
- The Bangalore method of composting is a simple and low-cost technique that can be implemented at various scales.
- It helps in reducing the volume of organic waste that goes to landfills, thereby reducing environmental pollution.
- The compost produced through this method is rich in nutrients and can be used as a natural fertilizer for plants.
- It promotes the recycling of organic waste and contributes to sustainable waste management practices.

In conclusion, the Bangalore method of composting is an aerobic composting technique that allows the decomposition of anaerobic waste. It involves the segregation, shredding, layering, moisture management, turning, and curing of organic waste to produce nutrient-rich compost. This method offers several advantages and is widely used in India for decentralized composting.