This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'True about aminoglycosides ia all EXCEPT: \nSelect and explain. \nA. Are bacteriostatic, B. Distributed only extracellularly, C. Excreted unchanged in urine, D. Teratogenic', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The aminoglycosides are bactericidal antibiotics, all having the same general pattern of action. ESSENTIALS OF MEDICAL PHARMACOLOGY page no.743', 'role': 'assistant'}]