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
Not used in the treatment of Juvenile Larynegeal papillomatosis 
Select and explain. 
A. INF α, B. INF β, C. Bevacizumab, D. Cedofovir
B: INF β
Answer: B: INF β 
Explanation: None