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 seen in eosinophil granules? \nSelect and explain. \nA. Cathepsin, B. Major basic protein, C. Transferrin, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Eosinophils are abundant in immune reactions mediated by IgE and in parasitic infections. A chemokine that is especially impoant for eosinophil recruitment is eotaxin. Eosinophils have granules that contain major basic protein, a highly cationic protein that is toxic to parasites but also causes lysis of mammalian epithelial cells. Ref: Robbins 8th edition, Chapter 2.', 'role': 'assistant'}]