Which type of family structure includes parents who are not married but co-parent?

The correct choice describes a family structure where parents, regardless of their marital status, work together to raise their children. This setup emphasizes the parental roles and responsibilities that are shared between the adults, regardless of their relationship status. In this context, the term "homosexual families" can refer to two parents who are in a same-sex relationship and choose to co-parent their children, which aligns with how family structures are defined today.

In contrast, blended families are formed when one or both partners have children from previous relationships, combining those children into a new family unit. Single-parent families consist of one adult raising one or more children without a partner. Multigenerational families include multiple generations living together, often with grandparents, parents, and children all under one roof, and do not specifically define the co-parenting scenario with unmarried parents.