This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Pharmacology
[{'content': 'Fluoroquinolone with highest oral bioavilability:- \nSelect and explain. \nA. Levofloxacin, B. Gemifloxacin, C. Ciprofloxacin, D. Norfloxacin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bioavailability : rate and extend to which an administered drug reaches the systemic circulation . Of the above mentioned drugs:- Levofloxacin has maximum bioavailability Norfloxacin has minimum bioavailability', 'role': 'assistant'}]