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': 'Following are the examples of apoptosis except:September 2008 \nSelect and explain. \nA. Graft versus host disease, B. Menstrual cycle, C. Pathological atrophy following duct obstruction, D. Tumour necrosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D: Tumour necrosis', 'role': 'assistant'}]