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
Drug used in RSV infection in children- 
Select and explain. 
A. Rituximab, B. Palivizumab, C. Penicillin, D. None of the above
B: Palivizumab
Answer: B: Palivizumab 
Explanation: None