The system of farming which involves the use of a large hectare of land planted with economic crops is known as

Step 1: Analyze the question The question asks for the farming system that uses a large hectare of land and is planted with economic (cash) crops.

Step 2: Explain the concepts

• Peasant farming: Small plots, family labour, simple tools, mostly for subsistence. This does not fit "large hectares."
• Tree planting: Growing trees, usually for timber, shade or environmental protection. It is not a farming system defined by large-scale economic crop production.
• Plantation farming: Large-scale cultivation of a single economic or cash crop (e.g. cocoa, rubber, oil palm, tea) on a very large area of land. It is usually run by a company or government, uses hired labour and is often tied to processing. In Nigeria, examples include the former Western Region cocoa plantations and the rubber estates in Edo and Delta.
• Mechanized farming: Use of machines (tractors, harvesters) in farming. It is defined by the method, not by the size of land or the type of crop, so it does not match the description.

Step 3: Match the description

• Large hectare of land → plantation farming
• Economic crops (cocoa, rubber, oil palm) → plantation farming

Answer: C. Plantation farming

Tip: Link "Plantation" with "Plant one cash crop on a Planet-sized land." Whenever you see large land + a single economic crop, think plantation. If the question stresses machines, think mechanized. If it stresses small land and family labour, think peasant or subsistence.