Which of the following phenomena is shown in the figure below? 
Definitions:
Specialization
The process in which individuals, firms, or countries focus on producing a narrow range of products or services, often to improve efficiency and productivity.
Division of Labor
The allocation of different tasks to different people or groups in an effort to increase efficiency and productivity.
Productivity
A measure of the efficiency with which goods and services are produced, often quantified as output per unit of input.
Economic Profits
The surplus after a firm subtracts its total costs from its total revenue, considering both explicit and implicit costs.
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