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': 'Contraction of endothelial cytoskeleton in acute inflammation leads to \nSelect and explain. \nA. Delayed transient increase in permeability, B. Early transient increase in permeability, C. Delayed permanent increase in permeability, D. Early permanent increase in permeability', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Increased vascular permeability is the hallmark of acute inflammation.\n\nRemember\n\nEarly transient increase is due to = Endothelial cell contraction\nDelayed transient increase in permeability is due to = Direct endothelial injury\nDelayed permanent increase Endothelial cell retraction is due to = endothelial cell damage', 'role': 'assistant'}]