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: Pharmacology
[{'content': 'Arthralgia is commonly caused by which ATT drug? \nSelect and explain. \nA. INH, B. Rifampicin, C. Pyrazinamide, D. Ethambutol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Arthralgia is caused by pyrazinamide, which may be non-gouty or due to hyperuricemia secondary to inhibition of uric acid secretion in the kidney.\nEthambutol also produces hyperuricemia due to interference with urate excretion.', 'role': 'assistant'}]