Final answer:
Endogamy is the practice of marrying within one's own social group or class. It helps societies to maintain social structures and cultural continuity. It is a form of social organization opposite to exogamy, the practice of marrying outside one's group.
Step-by-step explanation:
Endogamy is a social practice that requires individuals to marry within their own social group, class, or ethnicity. Endogamous marriage is common in many societies as it serves to maintain the social structure and cultural heritage within a group. It is contrasted with exogamy, which is the practice of marrying outside one's social group. Societies have established various rules and norms around marriage, including endogamy rules and exogamy rules. For example, in the United States, people often marry within the same linguistic group and generation, which are forms of endogamy.
In certain societies, endogamy helps create a stable socioeconomic household, reducing competition for partners and creating a synergistic environment for raising offspring. There are also social implications related to endogamy and social class where people are encouraged, but not as pressured as before, to marry within their own social background. This can help reinforce existing social structures and maintain the continuity of cultural and economic status.
Answer: B. marrying people in the same group