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 most susceptible to hypoxia? \nSelect and explain. \nA. Fibroblasts, B. Myocardial cells, C. Skeletal muscle, D. Neurons', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Neurons undergo irreversible damage within 3-4 minutes of Ischemic change.', 'role': 'assistant'}]