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
Basiliximab acts by antagonism against ? 
Select and explain. 
A. CD 25, B. CD 11a, C. TNF, D. All
A: CD 25
Answer: A: CD 25 
Explanation: Ans. is 'a' i.e., CD 25 o Basiliximab and daclizumab are mono-clonal antibodies against IL-2R (CD-25).