Within the last year, Mr. Mueller has been fired by three different employers because they each discovered that he was stealing money or materials from their companies. Although he feels no remorse for his misdeeds, his outward signs of repentance have dissuaded his former employers from taking him to court. Mr. Mueller's behavior is most indicative of

a) a dissociative disorder. 

b) borderline personality disorder. 

c) antisocial personality disorder. 

d) avoidant personality disorder.