What Can Be Said About the Authenticity of the Well-Known

Multiple Choice

What can be said about the authenticity of the well-known case of dissociative identity disorder (DID) involving Sybil?

A) It has been well supported and substantiated.
B) There is no way to verify whether the events reported actually occurred.
C) Although Sybil continues to assert that the events occurred as reported, many psychologists doubt her assertions.
D) Its authenticity has been questioned and Sybil has denied that the events and personalities described were true.