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: Pathology
[{'content': 'Which of the following antibodies is positive in Primary Biliary cholangitis (PBC) \nSelect and explain. \nA. Anti - nuclear antibody, B. Anti - mitochondrial antibody, C. Anti - smooth muscle antibodies, D. CANCA and PANCA', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Anti mitochondrial antibodies are a signature autoantibody of PBC and are detected in sera of\xa0 95% patients.', 'role': 'assistant'}]