What best describes the interaction between Stan and Sue's family, is the affinal relationships, are characterized by a legal relationship, such as marriage.
Affinal relationships influence the expansion of a family's social contact network, also expanding several issues, such as social support.
Therefore, a marriage is a union capable of providing affinal relationships to two families, which is a type of relationship valued in Western families, due to the possibility of greater support, friendship and assistance in social spheres.
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