Concept:Natural resources are gifts of nature used in production.
Explanation:In agriculture and economics, production requires four main factors.
These are land, labour, capital, and management.
Land refers to all natural resources provided by nature.
Examples include soil, water, forests, and minerals.
Capital and labour are man-made or human resources.
Management is the human effort that organizes production.
Therefore, the natural resource among the options is land.
Answer:D. land