Toni, the Apparently Devout and Devoted Wife of a Conservative

Toni, the apparently devout and devoted wife of a conservative member of the clergy, has been having an affair with a parishioner whose wife recently found out. Toni knows that the wife has an appointment to talk to Toni's husband the next day, and when her husband wakes up that morning, Toni is missing. When the authorities finally find her, she is living over 500 miles away and working in a gas station as the night clerk and insists that her name is Sarah Jones. She claims to have no recollection of Toni or Toni's life. Toni might be most appropriately diagnosed with

A) dissociative identity disorder.
B) dissociative amnesia.
C) dissociative fugue.
D) dissociative memory lapse.