Endogamy is the practice of marrying only within a specific ethnic, social or religious groupand rejecting people out of this group.

The marriage rule permitting only one partneris monogamy. The opposite is polygamy, which includes more than one partner.

Matrilocality is the social system and a socially instituted practice in which the married couple resides with or near to the wife’s kin.

The practice of tracing the descent from female line is called matrilineality.

Correct answer is B.