_____ is a situation in which what each person does significantly influences what the partner does over long periods of time.

A) Mutuality
B) Interdependence
C) Commitment
D) A parasocial relationship

Interdependence

A mutual reliance between two or more groups or individuals, where each party's welfare and benefits are reciprocally dependent upon the others'.

Mutuality

Partners’ acknowledgment that their lives are intertwined and thinking of themselves as a couple (“us”) instead of as two separate individuals (“me” and “you”).

Parasocial Relationship

A type of one-sided relationship where an individual becomes attached to a media persona or character without any reciprocal interaction.