Shawn was found sleeping on a park bench. when awakened by a police officer, he

Shawn 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 shawn's wife had left him the night before after a violent fight in which he tried to attack her. shawn insists that he has no memories of the dispute with his wife or even of having been married. his loss of memory illustrates:
a) dissociative identity disorder.
b) dissociative possession state.
c) dissociative amnesia.
d) hebephrenic schizophrenia.