This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Virchow triad include all except \nSelect and explain. \nA. Injury to vein, B. Venous thrombosis, C. Venous stasis, D. Hyper coagulability of blood', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref Robbins 7/e p130; 9/e p122', 'role': 'assistant'}]