Najib recently lost his job and has a great debt accumulated from gambling. He also has been feeling extreme pressure about not being able to take care of his eight children. After having too much to drink, Najib ran over a child crossing the street. Immediately following this episode, Najib could not remember who he was. This example illustrates:

A. dissociative amnesia
B. dissociative fugue
C. dissociative identity disorder
D. multiple personality disorder