This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cellular Pathology, Subject name: Pathology
[{'content': 'Winch of the following organelles plays a pivotal role in apoptosis? \nSelect and explain. \nA. Mitochondria, B. Endoplasmic reticulum, C. Nucleus, D. Golgi apparatus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Mitochondria(Ref Essential of apoptosis 2003:245)Mitochondria is the most important organelle involved in apoptosis initiation and regulation.', 'role': 'assistant'}]