A 54-year-old Caucasian male is brought to the clinic by his wife for evaluation. While you are interviewing him in the presence of his wife, he repeats comments and questions several times. He also...

A 54-year-old Caucasian male is brought to the clinic by his wife for evaluation. While you are interviewing him in the presence of his wife, he repeats comments and questions several times. He also answers questions regarding daily activities with long rambling stories that his wife reports are untrue. You recognize the symptoms of Korsakoff psychosis due to chronic alcoholism. Which of the following vitamin deficiencies is responsible for the patient’s findings?

A. Vitamin B1 deficiency

B. Vitamin A deficiency

C. Vitamin B12 deficiency

D. Vitamin E deficiency