Which of the following is a cluster A personality disorder?

• A. Paranoid.
• B. Histrionic.
• C. Avoidant.
• D. Schizoid.

Answer: (A)

Cluster A disorders are the odd/eccentric group. Paranoid personality disorder is a classic example: pervasive distrust and suspiciousness of others, interpreting others’ motives as malevolent, and often holding grudges or being reluctant to share personal information. This pattern reflects the mistrust and vigilantly suspicious worldview that defines Cluster A.

Histrionic personality disorder, by contrast, is dramatic, emotional, and attention-seeking, which fits with Cluster B. Avoidant personality disorder involves fear of rejection and social inhibition, aligning with Cluster C. Schizoid personality disorder is also in Cluster A and features social detachment, but paranoia is the clearest illustration among the options.