This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Apoptosis, Subject name: Pathology
[{'content': 'Central organ in apoptosis - \nSelect and explain. \nA. Mitochondria, B. Nucleus, C. ER, D. Golgi body', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Mitochondria", 'role': 'assistant'}]