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': 'Lipid in tissue is detected by \nSelect and explain. \nA. Oil Red 0, B. Muciramine, C. PAS, D. Myeloperoxidase', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Oil Red 0", 'role': 'assistant'}]