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': "Virchow's triad includes all ,except: \nSelect and explain. \nA. Injury to vein, B. Venous thrombosis, C. Venous stasis, D. Hypercoagulability of blood", 'role': 'user'}, {'content': 'Answer: B \nExplanation: . Venous thrombosis', 'role': 'assistant'}]