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 drug does not show renal toxicity 
Select and explain. 
A. Gentamycin, B. Streptomycin, C. Methoxyprenaline, D. Isoflurane
D: Isoflurane
Answer: D: Isoflurane 
Explanation: None