This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Lipid in the tissues is detected by \nSelect and explain. \nA. PAS, B. Myeloperoxidase, C. Oil Red O, D. Mucicarmine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Oil Red O Ref, Bancroft histology 6/e p53', 'role': 'assistant'}]