Final answer:
True, clans typically have more members and cover a larger area than lineages, with clans being large kin groups possibly with a mythological common ancestor, and lineage societies featuring leadership provided by elders and other situational figures.
Step-by-step explanation:
It is true that clans typically have more members and cover a larger area than lineages. Clans are large kin groups that function under a common ancestor, possibly mythological, and often involve complex social structures that extend across a wide area. Lineages, however, tend to trace descent from a common ancestor in a direct line and are not as extensive as clans. In the case of the Nuer of South Sudan, segmentary lineages such as minimal lineages, maximal lineages, and clans are formed, showing the increasing size and group cohesion as one moves from minimal to maximal lineages and then to clans. Clan members often adhere to a strong sense of tradition and may both influence and be influenced by sociopolitical dynamics, while lineage societies provide social integration with informal leadership overseen by elders.