In Arembepe, Brazil, a degree of community solidarity was promoted by the myth that everyone was ...

In Arembepe, Brazil, a degree of community solidarity was promoted by the myth that everyone was kin. However, social solidarity was actually much less developed in Arembepe than in societies with clans and lineages. Why?
 
  A. Intense social solidarity requires not a myth but a biologically grounded genealogy that shows people's actual relatedness.
  B. Arembepeiros who became successful were bound by social obligation to share their wealth. This powerful leveling mechanism worked against social solidarity.
  C. In societies with clans and lineages, social solidarity is much more developed, because they have more elaborate kinship rituals than Arembepeiros do.
  D. Intense social solidarity is possible only in societies having homogeneous ancestry. In Arembepe, high ethnic diversity weakens kinship ties.
  E. Intense social solidarity demands that some people be excluded. By asserting they were all relatedthat is, by excluding no oneArembepeiros were actually weakening kinship's potential strength in creating and maintaining group solidarity.