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': "Fanconi's syndrome is caused by- \nSelect and explain. \nA. Cephalosporins, B. Chloramphenicol, C. Decreased pseudocholinesterase, D. Old and degraded tetracycline", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Old and degraded tetracycline o A fanconi syndrome like condition is produced by outdated tetracyclines due to proximal tubular damage caused by degraded products ---> epitetracycline, anhydrotetracycline, and epianhydrotetracycline.", 'role': 'assistant'}]