Which of the following statement are true regarding the Diagnostic and Statistical…

Which of the following statement are true regarding the Diagnostic and Statistical Manual of Mental Disorders (DSM)?
A.     historically, across editions of the book, the DSM’s diagnostic categories have changed substantially
B.     DSM categories are descriptions of disorders, not a list of causes of disorders
C.     use of the DSM may cause mental illness to be over diagnosed
D.     all of the above