46 A 46-year-old woman has a 25-year history of excessive ethanol consumption. She has had increasing malaise andweakness for the past 5 months. On physical examination, she appears cachectic with muscle wasting and decreased strength in all extremities. Which of the following conditions is most likely to be present? (A) Blindness (B) Carcinoma of the esophagus (C) Dementia (D) Peripheral vascular disease (E) Acute renal failure