Which cluster do Histrionic, Borderline, Antisocial, and Narcissistic personality disorders belong to?

• A. Cluster A
• B. Cluster B
• C. Cluster C
• D. Cluster D

Answer: (B)

The concept being tested is how these personality disorders are grouped in the DSM-5 clusters. Histrionic, Borderline, Antisocial, and Narcissistic personality disorders are all placed in Cluster B, the dramatic, emotional, and erratic cluster. This cluster is defined by pervasive patterns of dramatic or impulsive behavior, and emotional instability that impairs functioning, especially in relationships.

Histrionic personality disorder centers on excessive emotionality and a strong need for attention. Narcissistic personality disorder involves grandiosity, a craving for admiration, and a lack of empathy. Antisocial personality disorder is marked by disregard for the rights of others, deceit, and impulsivity. Borderline personality disorder features marked instability in mood, self-image, and relationships, with intense reactions and fear of abandonment. Together, these disorders share a pattern of dramatic, emotional, and unstable behavior, which is why they are grouped in Cluster B.

For contrast, Cluster A includes odd or eccentric patterns, while Cluster C includes anxious or fearful patterns, highlighting how the clusters categorize disorders by shared interpersonal and affective styles.