This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mechanisms of Cell Injury, Subject name: Pathology
[{'content': 'All are reversible injury of cell, except \nSelect and explain. \nA. Vacuole, B. Karyorrhexis, C. Fat accumulation, D. Cell wall swelling', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans is 'b' Karyorrhexis", 'role': 'assistant'}]