This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basic Concepts and Vascular changes of Acute Inflammation, Subject name: Pathology
[{'content': 'Delayed prolonged vascular leakage can result from: \nSelect and explain. \nA. Burns, B. X-Rays, C. Exposure to the sun, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In some forms of mild injury (e.g., after burns, irradiation or ultraviolet radiation, and exposure to ceain bacterial toxins), vascular leakage begins after a delay of 2 to 12 hours and lasts for several hours or even days. Delayed prolonged leakage may be caused by contraction of endothelial cells or mild endothelial damage. Sunburn is a classic example of damage that results in late-appearing vascular leakage.', 'role': 'assistant'}]