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
A person on anti-tubercular drugs complained of deafness and tinnitus in one ear. Drug implicated is? 
Select and explain. 
A. Streptomycin, B. Isoniazid, C. Ethambutol, D. Rifampicin
A: Streptomycin
Answer: A: Streptomycin 
Explanation: ANSWER: (A) StreptomycinREF: KDT 7th ed p. 743Streptomycin causes nephrotoxicity and ototoxicity