which would most clearly fit into the biosocial theory of the development of borderline personality disorder? a. an individual who has difficulty controlling internal emotions and parents who mislabel those emotions b. an individual who has friends who display many of the symptoms of borderline personality disorder c. an individual who engages in self-injurious behavior while under the influence of illegal substances d. an individual who has deficits in the functioning of both the amygdala and the prefrontal cortex