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
Roxithromycin is 
Select and explain. 
A. A long acting macrolide, B. Short action quinolone, C. Short acting macrolide, D. Long acting polypeptide
A: A long acting macrolide
Answer: A: A long acting macrolide 
Explanation: None