A nurse is reinforcing education to a newly licensed nurse about comorbidities associated with cluster B personality disorders. The nurse should identify which of the following disorders as a comorbidity?

Choice A reason: Schizophrenia is a primary psychotic disorder and is not typically classified as a standard comorbidity for Cluster B personality disorders. While patients with Borderline Personality Disorder may experience transient stress-related paranoia, they do not generally meet the diagnostic criteria for the chronic cognitive and functional decline seen in schizophrenia. Choice B reason: Cluster B personality disorders, particularly Borderline and Histrionic types, are frequently comorbid with general anxiety disorder and other mood-related conditions. The emotional dysregulation and impulsivity inherent in Cluster B pathologies often generate significant internal distress and environmental stressors, which frequently manifest clinically as persistent, generalized anxiety symptoms requiring concurrent psychiatric management. Choice C reason: While eating disorders like Bulimia Nervosa are strongly associated with the impulsivity of Borderline Personality Disorder, Anorexia Nervosa is more frequently linked with Cluster C disorders, such as Obsessive-Compulsive Personality Disorder. The rigid control and perfectionism of anorexia align more closely with the "anxious-fearful" cluster than the "dramatic-emotional" cluster. Choice D reason: Obsessive-compulsive disorder (OCD) is an anxiety-related disorder most commonly seen in conjunction with Cluster C personality traits. The need for order, precision, and control found in OCD contrasts with the typically erratic, impulsive, and emotionally volatile behaviors that characterize the Cluster B diagnoses like Narcissistic or Antisocial personality disorders.