Jack was found sleeping on a park bench. when awakened by a police officer, he could not remember who he was or where he lived. later, investigators discovered that jack's wife had left him the night before after a violent fight in which he tried to attack her. jack insists that he has no memories of the dispute with his wife or even of having been married.
jack is probably suffering from:

a) generalized anxiety disorder.
b) dissociative amnesia.
c) dissociative possession state.
d) hebephrenic schizophrenia.