Marco is viewed by this family as "fictive kin".
We can define fictive kin as the individuals who are viewed as being a piece of a family despite the fact that they are not related by either blood or marriage bonds. Fictive kinship may tie individuals together in ties of love, concern, commitment, and obligation.
The term Fictive kinship may likewise be utilized as a part of a legitimate sense, and this utilization proceeds in social orders where these classes and definitions with respect to family relationship and social ties have lawful cash; e.g. in issues of legacy.
Answer: primary
Explanation:
The term 'primary' is used with these groups because they are the primary source of relationships and socialization.
Family is as social primary group that we acquire our beliefs, norms and values. A person's family help them gain a better understanding of their identity as well as provide individuals with a sense of belonging..it is also a primary source of relationships and socialization. According to Charles horton, it is a small social group whose members share personal and lasting relationships and friendships. In every society, that family is the most important primary groups