In caste system status is determined by birth and can marry with the group/endogamya.
Option: B
Step-by-step explanation:
Endogamya refers to the marriage of two men and women in a same caste or ethnic group. Exogamya is just opposite of Endogamya when one marries a woman from different ethnic group and caste. In this way community identity and status maintained well.
In caste system one's status is determined by his birth identity. When two person of similar high status marry it calls homogamy. Caste system hardens the community identity and social grouping of human being.