From a Rational Choice/social Exchange Theory Perspective, Which of the Following

From a rational choice/social exchange theory perspective, which of the following describe how a functional, healthy family might look?

A) All the children and the adults know that when threatened, they have someone who will be attentive and responsive to their needs.
B) The boundaries between the parental acting as executives and the child(ren) is semi-permeable, such that when appropriate, the children can be part of decision making.
C) The self-interests of each person in the family are being realized, such that being in the family is more rewarding than costly.