Type C personality disorder: (A) Avoidant personality disorder, (B) Histronic personality disorder, (C) Paranoid personality disorder, (D) Narcissistic personality disorder
Answer is A. Cluster C has disorders considered "anxious and fearful" and characterised by "introversion". These include Anxious (Avoidant), Dependent and Obsessive Compulsive (or Anankastic) personality disorders. Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no. 113