Adam always expects special treatment, and he seems to be preoccupied with his own success. His interpersonal relationships are generally superficial because he seems to lack the ability to understand how others feel. Last week, Adam underwent a psychological assessment. Based on that assessment, he was told that he might have a personality disorder. Based on his behavior, it is most likely that Adam has. a. schizotypal personality disorder. b. obsessive-compulsive personality disorder. c. narcissistic personality disorder. d. avoidant personality disorder.