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A 57-year-old man, with a history of chronic alcohol ingestion, is admitted to the hospital with acute alcoholic intoxication and lobar pneumonia. Physical examination reveals pallor; a large, tender liver; and consolidation of the right lower lobe. Laboratory data include hemoglobin of 7 g/dL, WBC of 4000/mL, and platelet count of 85,000/mL. Which of the following is the most likely factor for the anemia?

Ahemolysis
Bhemobilia
Cvitamin B12 deficiency
Dtoxic marrow suppression
Medicine
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