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
All of the following are causes of "lupus" except 
Select and explain. 
A. Hydralazine, B. Clofibrate, C. Penicillamne, D. Chlorpromazine
B: Clofibrate
Answer: B: Clofibrate 
Explanation: Drugs causing lupus sulfonamides hydralazine isoniazid procainamide anticonvulsants Lithium pencillamine diltiazem betablockers Sulfasalazine Interferon gamma TNF inhibitors iadvl textbook of dermatology page 1221