This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': '30-year-male with chronic diarrhoea, anemia, raised liver enzymes. Most likely associated with - \nSelect and explain. \nA. Antimitochondrial antibody, B. Anti-endomysial antibody, C. Anti-smooth muscle antibody, D. Antinuclear antibody', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]