Problem: Please provide a discussion response with APA citations and references to "Personality disorders are grouped into three clusters based on symptom presentation. Cluster A disorders (paranoid, schizoid, schizotypal) are characterized by odd or eccentric behaviors and social detachment. Cluster B disorders (antisocial, borderline, histrionic, narcissistic) involve dramatic, emotional, or erratic behaviors. Cluster C disorders (avoidant, dependent, and obsessive-compulsive) reflect anxious and fearful patterns (American Psychiatric Association [APA], 2022). Neurobiological findings suggest that personality pathology involves dysregulation in brain regions associated with emotional regulation and impulse control, particularly within frontal-limbic circuits (Gawda et al., 2016). Ethically, counselors must maintain competence, establish clear boundaries, and monitor countertransference when working with clients diagnosed with personality disorders. The ACA Code of Ethics emphasizes practicing within one's scope of training and seeking supervision when necessary (American Counseling Association [ACA], 2014). Because treatment can involve intense relational dynamics, consistent supervision and documentation are essential. An example of a Cluster B disorder is Borderline Personality Disorder (BPD). BPD is associated with emotional instability, fear of abandonment, and impulsivity. Need Assignment Help?