<prompt> 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 gdL, WBC of 4000mL, and platelet count of 85,000mL. Which of the following is the most likely factor for the anemia?hemolysishemobiliavitamin B12 deficiencytoxic marrow suppression  <response>: Anemia is usually multifactorial in alcoholics and includes marrow suppression, GI bleeding, hemorrhagic diathesis, and nutritional deficiency. 