This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basic Concepts and Vascular changes of Acute Inflammation, Subject name: Pathology
Which of the following is not present in azurophil granules of neutrophil? 
Select and explain. 
A. Defensins, B. Myeloperoxidase, C. Acid hydrolases, D. Lactoferrin
D: Lactoferrin
Answer: D: Lactoferrin 
Explanation: Lactoferrin is present in secondary/specific granules. Neutrophils have two main types of granules:- The smaller specific (or secondary) granules contain:- The larger azurophil (or primary) granules contain:- Lysozyme Collagenase Lactoferrin Plasminogen activator Histaminase Alkaline phosphatase Myeloperoxidase Bactericidal factors (defensins) Acid hydrolases A variety of neutral proteases (elastase, cathepsin G, non-specific collagenases, proteinase 3).