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': 'During the early stages of the inflammatory response, histamine induced increased vascular permeability is most likely to occur in: \nSelect and explain. \nA. Arteries, B. Precapillary arterioles, C. Capillaries, D. Postcapillary venules', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Acute inflammation causes fluid and cells to leak out of blood vessels into the interstitial tissue because of increased permeability of postcapillary venules.', 'role': 'assistant'}]