Which of the following describes a system of agriculture where a single crop is grown over a large area? 

The correct answer is plantation agriculture.

Key Points 

• Plantation agriculture is a type of agriculture in which a single crop is grown over a large area.
• It is a type of commercial farming.
• The plants that are grown include tea, coffee, cotton, cocoa, sugarcane, rubber etc.
• A huge workforce and capital are needed in plantation farming.
• The states in which plantation agriculture is practiced are Assam, Tamil Nadu, Karnataka, Kerala, and West Bengal.

 Thus, we can say that plantation agriculture is a type of agriculture in which a single crop is grown over a large area.