In South Sudan, a Nuer Woman Can Marry a Woman

In South Sudan, a Nuer woman can marry a woman if her father has only daughters but no male heirs. This is done to maintain the patrilineage. The "wife" has sex with one or more men until she gets pregnant. The children born are then accepted as the offspring of both the female husband and the wife. What is important in this example is

A) that it illustrates how romantic love is both universal and complicated.
B) the fact that only same-sex marriages are recognized in patrilineal societies.
C) how often marriage is simply about property.
D) how biology overrides culture regardless of human intentions.
E) social rather than biological paternity, again illustrating how kinship is socially constructed.