DrBradley Has Been Conducting a Case Study of Brenda P

Dr.Bradley has been conducting a case study of Brenda P.,a woman with dissociative identity disorder.Which of the following statements by Dr.Bradley is a misuse of the case study method?

A) "Brenda,a woman with dissociative identity disorder,was sexually abused as a child.Therefore,all individuals with multiple personality disorder must have been abuse victims."
B) "Since Brenda was not sexually abused,the theory that all dissociation is caused by sexual abuse may not be universally true."
C) "Brenda was sexually molested as a child.This leads me to hypothesize that perhaps other individuals with dissociative identity disorder were molested as children."
D) All of the above are examples of inappropriate uses of the case study.