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 drugs is NOT excreted in bile : 
Select and explain. 
A. Erythromycin, B. Ampicillin, C. Rifampicin, D. Gentamicin
D: Gentamicin
Answer: D: Gentamicin 
Explanation: Gentamicin is an aminoglycoside and is excreted via renal route.