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': 'Irreversible injury in cell is \nSelect and explain. \nA. Deposition of ca ++ in mitochondria, B. Swelling, C. Mitotic figure, D. Ribosomal detachment', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref, Robbins 8/e p13-14;7/ep11,9/ep47', 'role': 'assistant'}]