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': 'Hepatitis C virus is associated with -a) Anti LKM - I antibodyb)  Sclerodermac) Cryoglobulinemiad) Polyarteritis nodosa \nSelect and explain. \nA. a, B. ac, C. ad, D. b', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]