What Is the Main Reason That Dissociative Identity Disorder (DID)patients

Multiple Choice

What is the main reason that dissociative identity disorder (DID) patients tend to have many additional psychological disorders?

A) The more personalities associated with the DID, the more additional disorders will develop.
B) Most DID patients abuse drugs and alcohol, which leads to other disorders.
C) Most have suffered horrible child abuse, which leads to many problems in later life.
D) They appear to have an extreme genetic vulnerability to psychopathology.