Which of the following is accurate regarding dissociative identity disorder (DID)?

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The primary personality consistently recognizes all alternate identities.Alternate personalities generally have no knowledge of the main personality.All identities tend to share very similar characteristics.There was a significant rise in DID diagnoses beginning in the 1970s.None of the above statements are correct.

Explanation

Option D is correct because the recognition and diagnosis of dissociative identity disorder increased substantially starting in the 1970s. Option A is incorrect since the original personality is not always aware of alternate identities. Option B is inaccurate because some alternate personalities may know about the primary personality. Option C is false as the different identities usually have distinct traits.