Concept:Large-scale cultivation of cash crops on extensive land is plantation farming.
Explanation:Plantation farming uses large hectares of land to grow economic or cash crops.
These crops include cocoa, tea, coffee, rubber, sugarcane, and palm oil.
The main purpose is commercial production for sale in local and international markets.
This system is usually organized as a single estate under one management.
It requires major capital investment and may use modern machinery or hired labour.
Unlike peasant farming, which is small-scale, plantation farming operates on a very large scale.
Mechanized farming describes the heavy use of machines, not the size or cash-crop focus.
Tree planting is simply growing trees and does not define the farming system.
Therefore, the correct term for large-hectare economic crop farming is plantation farming.
Answer:C. plantation farming