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: Pathology
Contents of microbicidal granules of leucocytes include all, EXCEPT: 
Select and explain. 
A. Elastase, B. Major basic protein, C. Eotoxin, D. LCAM
D: LCAM
Answer: D: LCAM 
Explanation: Microbial killing can also occur through the action of other substances in leukocyte granules. Neutrophil granules contain many enzymes, such as elastase. Other microbicidal granules are defensins, cathelicidins, lysozyme, lactoferrin, major basic protein, bactericidal/permeability increasing protein. Ref: Robbins 8th edition Chapter 2.