This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pathology
[{'content': 'In adults, most common autoimmune disease of liver is? \nSelect and explain. \nA. Autoimmune hepatitis, B. Sclerosing cholangitis, C. alpha antitrypsin deficiency, D. Primary billiary cirrhosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: it is a progressive chronic autoimmune desease usually affect middle aged women with peak incidence between 40 to60 yrs of age SYSTEMIC AND GENERAL PATHOLOGY RAMDAS NAYAK PGNO.461', 'role': 'assistant'}]