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
[{'content': 'Which of the following is found in secondary granules of neutrophils? \nSelect and explain. \nA. Catalase, B. Gangliosidase, C. Proteolytic enzyme, D. Lactoferrin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Neutrophils have two main types of granules\nThe smaller speciﬁc (secondary) granules contain lysozyme, collagenase, gelatinase, lactoferrin, plasminogen activator, histaminase, and alkaline phosphatase.\nThe larger azurophil (primary) granules contain myeloperoxidase, bactericidal factors (such as defensins), acid hydrolases, and a variety of neutral proteases (elastase, cathepsin G, nonspeciﬁc\xa0collagenases, proteinase).\nReference-Robbins BASIC PATHOLOGY 10th edition pg-68', 'role': 'assistant'}]