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: Medicine
All the following are used in the treatment of pneumocystis carinii except 
Select and explain. 
A. Pentamidine, B. Dapsone, C. Cotrimoxazole, D. Fluoroquinolones
D: Fluoroquinolones
Answer: D: Fluoroquinolones 
Explanation: None