This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Tuberculosis, Subject name: Pharmacology
[{'content': 'A person on anti-tubercular drugs complained of deafness and tinnitus in one ear. Drug implicated is? \nSelect and explain. \nA. Streptomycin, B. Isoniazid, C. Ethambutol, D. Rifampicin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) StreptomycinREF: KDT 7th ed p. 743Streptomycin causes nephrotoxicity and ototoxicity', 'role': 'assistant'}]