This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
[{'content': 'The stain used for demonstrating Auer rods in blasts is - \nSelect and explain. \nA. Periodic Acid Schiff(PAS, B. Myeloperoxidase, C. Leucocyte alkaline phosphatase, D. Non-specific esterase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The cytochemical stain, Myeloperoxidase is positive in immature myeloid cells containing granules and Auer rods Reference textbook of Pathology 7th edition author Harsha Mohan page number 342', 'role': 'assistant'}]