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
A 55 year old patient with disseminated tuberculosis is prescribed drugs. Which of the following might be seen in patient of TB, who has regularly been injecting intramuscular injection of streptomycin: 
Select and explain. 
A. Blindness, B. Increased AST levels, C. Impotence, D. Deafness
D: Deafness
Answer: D: Deafness 
Explanation: Deafness