This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autoimmune skin disorders, Subject name: Dental
[{'content': 'All of the following are causes of "lupus" except \nSelect and explain. \nA. Hydralazine, B. Clofibrate, C. Penicillamne, D. Chlorpromazine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Drugs causing lupus sulfonamides hydralazine isoniazid procainamide anticonvulsants Lithium pencillamine diltiazem betablockers Sulfasalazine Interferon gamma TNF inhibitors iadvl textbook of dermatology page 1221', 'role': 'assistant'}]