The rule-governed relationships that hold members of a society together are called its:​

A) ​ethnicity
B) ​subculture
C) ​culture
D) ​social structure

Social structure refers to the patterned social arrangements in a society that guide and constrain behavior of individuals and groups. It includes the institutions, organizations, and networks that regulate interactions and relationships between people. Ethinicity, subculture and culture are all important components of social structure, but they are more specific aspects that do not encompass the entire structure of society.