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
Irreversible injury in cell is 
Select and explain. 
A. Deposition of ca ++ in mitochondria, B. Swelling, C. Mitotic figure, D. Ribosomal detachment
A: Deposition of ca ++ in mitochondria
Answer: A: Deposition of ca ++ in mitochondria 
Explanation: Ref, Robbins 8/e p13-14;7/ep11,9/ep47