This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New Born Infants, Subject name: Pediatrics
All of the following are true except: 
Select and explain. 
A. NADPH oxidase acts via superoxide ions, B. Chediak-Higashi syndrome is due to defective phagolysosome formation, C. In Brutons agammaglobulinemia opsonisation is not affected, D. Myeloperoxidase action is mainly due to OCI-
C: In Brutons agammaglobulinemia opsonisation is not affected
Answer: C: In Brutons agammaglobulinemia opsonisation is not affected 
Explanation: c. In Brutons agammaglobulinemia opsonization is not affected(Ref: Nelson's 20/e p 1012-1016, Ghai8/ep 186)IgM is important for opsonization, so in Brutons agammaglobulinemia opsonisation is affected.