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 finding on electron microscopy indicates irreversible cell injury ? \nSelect and explain. \nA. Dilatation of endoplasmic reticulum, B. Dissociation of ribosomes from rough endoplasmic reticulum., C. Flocculent densities in the mitochondria, D. Myelin figures.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: . Flocculent densities in the mitochondria', 'role': 'assistant'}]