Explanation:

- Human capital: Refers to the skills, knowledge, and experience possessed by individuals. It is intangible, unlike the means of production.

- Human development: Focuses on improving human well-being, including health, education, and living standards. It does not directly relate to the means of production.

- Physical capital: Includes tangible assets like machinery, tools, and equipment used in the production process. It is produced and used for further production.

- Option 4 suggests a combination of human capital and physical capital. However, only physical capital directly relates to the produced means of production.