Based on sociological theory, the social unit that is most responsible for teaching the customs and traditions of a culture is the "Family."
This is because the family is the social unit that shares most socio-cultural features with the individuals.
Family most of the time share language, nation, tribes, and geographical location with individuals.
Family consists of Father, Mother, Siblings, Wife, Husband and other extended relations like grandparents, cousins, aunts, uncles, nephews, niece, etc.
Hence, in this case, it is concluded that the correct answer is "Family."
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