Korsakoff's Syndrome Patients Sometimes Experience Both Anterograde and Retrograde Amnesia

Multiple Choice

Korsakoff's syndrome patients sometimes experience both anterograde and retrograde amnesia.This syndrome is caused by

A) the lack of the neurotransmitter serotonin.
B) lack of oxygen during stressful events.
C) traumatic brain injury and blood loss.
D) vitamin loss due to the diet of chronic alcoholics.