A child smiles and gains attention from a caretaker, so the child begins to smile more often. This is an example of .

A. Imitation
B. Operant Conditioning
C. Classical Conditioning
D. Habituation

B. Operant conditioning

Explanation:

In psychology, the term operant conditioning refers to a form of learning by reinforcements and punishments.

According to this, a reinforcement is an stimulus that increases the probability that a certain behavior takes place again in a future, so, when the individual is presented with this stimulus, the behavior will be more likely repeated in the future and it will happen more often.

In this example a child smiles and gains attention, the reinforcement would be the gaining of attention, which would be the stimulus that is making the child to begin to smile more often. Gaining attention is something desirable and pleasant for the child so it's a reinforcement for the conduct of smiling.

Therefore this is an example of b. operant conditioning.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.