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
Not a hepatotoxic drug - 
Select and explain. 
A. Allopurinol, B. Streptomycin, C. Sulfonamide, D. None
B: Streptomycin
Answer: B: Streptomycin 
Explanation: Ans. is 'b' i.e., Streptomycin o Streptomycin and ethambutol are first line antitubercular drugs without hepatotoxicity.