According to the seven$-$vector model of identity development, interdependence is:

Question $1$ options:

a$)$

Depending on others for one's emotional needs.

b$)$

Mutual co$-$dependency, where both parties need each other equally.

c$)$

Being self$-$sufficient without the need for approval or reassurance from others.

d$)$

Healthy balance between the need to be independent and the need to belong.