Answer:
Behavioral.
Step-by-step explanation:
Dependent personality disorder may be defined as the medical condition in which the individual is characterized by the inability to be alone. The individual depend on the other people for their advice and comfort.
This disorder mainly depends on the behavioral approach of that individual. The particular behavior of the individual to depend on the other individual may increase the chance of the dependent personality disorder. Hence, the therapist is least affected by hos behavior.
Thus, the answer is behavioral.