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: Surgery
[{'content': 'The initial therapy of documented deep venous thrombosis in a post operative case is ? \nSelect and explain. \nA. Subcutaneous heparin therapy, B. Intravenous heparin therapy, C. Thrombolytic therapy with urokinase, D. Aspirin therapy', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Intravenous heparin therapy", 'role': 'assistant'}]