This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
[{'content': 'Antimitochondrial antibodies are found in 90% of patients with \nSelect and explain. \nA. Primary biliary cirrhosis, B. Chronic active hepatitis, C. Seminoma, D. Choriocarcinoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The most characteristic immunologic abnormality associated with primary biliary cirrhosis is the presence of antimitochondrial antibodies, which are found in 90% of affected individuals.This antibody is predominantly IgG. Antimitochondrial antibodies also can be detected in persons with other liver diseases but with a much lower frequency (less than 10%) and usually in low titer.', 'role': 'assistant'}]