Explanation:

- Kroeber: Your answer is right. Kroeber suggested that culture is "superorganic," emphasizing its existence beyond merely biological aspects.

- Kluckhohn: Known for his work on culture, but not specifically for the "superorganic" or "super physic" view.

- Spencer: Focused on social evolution, not specifically on the superorganic, super physic, or super social concept.

- MacIver: Known for work on social theory, but not pertinently related to the "superorganic" discussion.

Kroeber's idea of culture extends beyond organic to include physical and social aspects. Culture transcends individual or biological contributors, merging into a complex entity of social and physical elements.