Final answer:
The basic social organization unit in Turkana, which is a pastoralist society, is centered around the family and their herd animals. It is most closely represented by the option of man, wife, children, and milking animals. The correct option is 3) Turkana tribe
Step-by-step explanation:
The basic unit of social organization in Turkana society is likely to be similar to other pastoralist societies. In the context of pastoralism, as per anthropological studies, the basic unit revolves around the family and their herd animals.
This means that the nuclear or extended family, along with their herding lifestyle, forms the core social structure. The family's herds are not just an economic asset but also confer social status and integrate them into wider social networks through practices like gifting animals in marriages or slaughtering animals for guests.
Therefore, based on this information, the closest option from the provided choices would be 2) Man, wife, children, and milking animals, as this configuration represents the immediate unit of social and economic activity for pastoralists like the Turkana. The correct option is 3) Turkana tribe