Explanation:

The basic factors of production are essential inputs required for producing goods and services:

- Land: Represents natural resources available for production.

- Labour: Involves human effort and skills used in the production process.

- Capital: Refers to man-made resources like buildings, tools, and machinery that help in production.

- Enterprise: This is the factor that organizes the other three resources. It involves entrepreneurship, which refers to the ability to combine land, labor, and capital to produce goods and services.

Option 1: Enterprise – The correct answer, as it involves management and decision-making in organizing production.

Option 2: Investment – This is not a basic factor; it's the use of resources to generate future returns.

Option 3: Machinery – Falls under capital.

Option 4: Resources – General term but not specific for the context.