Which of the following options can you match with the figure given below?
Vermi-composting
Vermicomposting involves degradation of organic matter into fertile manure by using a special type of earthworms called as red worms. The nutrient-rich manure is called as vermicompost. The process of preparing manure with the help of red worms is called vermicomposting. The red worm is a type of earthworm that lives in the soil rich in organic matter. Organic soils are rich in nitrogen and carbon with plenty of moisture and microbes.