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: ENT
To prevent synachiae formation after nasal surgery, which one of the following packings is the most useful: 
Select and explain. 
A. Mitomycin, B. Ribbon gauze, C. Ribbon gauze with liquid paraffin, D. Ribbon gauze steroids
A: Mitomycin
Answer: A: Mitomycin 
Explanation: None