What does it mean to define family by "function" rather than "form"? (1 point)

What will be an ideal response

What does it mean to define family by "function" rather than "form"? 1 point for any of the following:
- Regardless of who is in the "family" group, the individuals provide physical, emotional, and mutual aid to members
- What's more important than living with blood relatives is that whoever you live with provides physical and mental support
- Regardless of who you live with, they take care of each other