The practice of marriage within the boundaries of kin group, clan,lineage ,village and social class is known asOptionsexogamylevirateendogamysororate

The practice of marriage within the boundaries of kin group, clan, lineage, village, and social class is known as endogamy.

Explanation:

Endogamy refers to a social rule or norm that encourages individuals to marry within a specific social group, community, or ethnicity. This practice helps maintain cultural identity and often reinforces familial and social ties. In contrast, exogamy is the practice of marrying outside one's social group, which can lead to the introduction of new alliances and bloodlines.

In societies where endogamy is practiced, such as certain castes or ethnic groups, marriage can serve as a means of preserving social structures and preventing the dilution of cultural traits. This can impact everything from inheritance patterns to social status, and it's a foundational concept in the study of anthropology and sociology. Understanding these marriage practices provides insights into social organization and cultural identity.