Explanation:

- Synadasnian family (Option 1): In anthropology, this term refers to a marriage between single pairs, but it does not guarantee exclusive cohabitation. Partners may not have rights to live together exclusively.

- Conjugal family (Option 2): This means a family based on marriage, typically with exclusive rights to cohabitation and sexual relations.

- Patriarchal family (Option 3): This refers to a family system where the father or eldest male is head, not about cohabitation rights.

- Promiscuous family (Option 4): This describes a group with no fixed pair bonds – everyone is free to have relations, so it’s not about single pair marriage.

Correct Answer: Option 1 - synadasnian family