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
All of the following drugs are administered orally except- 
Select and explain. 
A. Ciprofloxacin, B. Cotrimoxazole, C. Gentamicin, D. Amoxicillin
C: Gentamicin
Answer: C: Gentamicin 
Explanation: Ans. is 'c' i.e., Gentamicin o Aminoglycosides are not used orally.