This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Anatomy
Antibody used in treatment of RSV infection 
Select and explain. 
A. Omalizumab, B. Palivizumab, C. Rituximab, D. Daclizumab
B: Palivizumab
Answer: B: Palivizumab 
Explanation: Ref Harrison 19 th ed pg 923,1206 Palivizumab is a recombinant humanized,monoclo mon IgG antibody directed against the RSV fusion protein.