What term describes the preference for maternal relations within a kin group?

The term that best describes the preference for maternal relations within a kin group is matrilineal descent. This concept refers specifically to a system in which lineage and inheritance are traced through the mother rather than the father. In matrilineal cultures, individuals may be considered members of their mother's kin group, influencing family structure, inheritance rights, and social identity.

In contrast, patrilineal descent focuses on tracing lineage through the father's side, which is not consistent with the preference for maternal relations. An egalitarian family emphasizes equal roles and responsibilities between family members, rather than a preference for one side of the family over the other. Social hierarchy pertains to the ranking of individuals or groups within a society and does not directly relate to kinship systems or relations. Therefore, matrilineal descent correctly captures the described preference for maternal relations.