This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mental Health, Subject name: Social & Preventive Medicine
All are cluster B disorders of personality except - 
Select and explain. 
A. Antisocial, B. Narcissistic, C. Avoidant, D. Borderline
C: Avoidant
Answer: C: Avoidant 
Explanation: Ans. is 'c' i.e., Avoidant Personality disorderso ClustorA: Paranoid, Schizoid, Schizotypal.o Clustor B: Antisocial (Dissocial), Histrionic, Narcissistic, Borderlineo Clustor C: Anxious (avoidant). Dependent, obsessive - compulsive (anankastic).