This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hepatitis, Subject name: Pathology
[{'content': 'Autoimmune hepatitis type I is characterized by presence of all of the following except: \nSelect and explain. \nA. ANA, B. SMA, C. Anti-LKM-1, D. none of these', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Autoimmune hepatitisis a chronic, progressive hepatitis. Type 1: Type 2: Middle-aged to older individuals Antinuclear (ANA), Anti-smooth muscle actin (SMA). Children and teenagers Anti-liver kidney microsome-1 (anti-LKM-1) antibodies, directed against CYP2D6, and anti liver cytosol-1 (ACL-1) antibodies.', 'role': 'assistant'}]