A patient presents to the emergency room with malaise. The physician notices slight jaundice. Serum chemistries reveal marked elevation of both aspaate aminotransferase (AST) and alanine aminotransferase (ALT), with the AST/ALT ratio being 2.5. Alkaline phosphatase is near normal. Serum copper and serum iron are normal. Liver damage from which of the following diseases most likely accounts for these findings?
Alcoholic hepatitis Biliary cirrhosis Hemochromatosis Hepatitis A