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: Pharmacology
Monoclonal antibody to IL–5 is : 
Select and explain. 
A. Mepolizumab, B. Omalizumab, C. Keliximab, D. Altrakincept
A: Mepolizumab
Answer: A: Mepolizumab 
Explanation: None