The correct answer is C.
The four economic resources or factors of production which are employed to transform inputs into goods and services aimed to satisfy human needs, are the following:
- Land or raw materials: natural resources
- Capital: goods that are used to manufacture other goods, for example: machines or tools
- Labor: physical and intellectual skills or workers
- Entrepeneurial ability: skills in order to coordinate the other 3 factors and achieve the ultimate goal of obtaining goods and services
