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 of the following is the hallmark of programmed cell death ? \nSelect and explain. \nA. Apoptosis, B. Coagulation necrosis, C. Fibrinoid necrosis, D. Liquefaction necrosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Apoptosis", 'role': 'assistant'}]