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
Which of the following antitubercular drug is not hepatotoxic : 
Select and explain. 
A. Isoniazid, B. Rifampicin, C. Ethionamide, D. Streptomycin
D: Streptomycin
Answer: D: Streptomycin 
Explanation: Streptomycin and ethambutol are not hepatotoxic. Read carefully, option (c) is ethionamide, not ethambutol.