This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardio thoracic surgery  , Subject name: Anatomy
[{'content': 'In pulmonary embolism , fibrinolytic therapy is responsible for \nSelect and explain. \nA. Massive emboli, B. Risk of hemorrhage, C. All the above, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Hemorrhage is the main complication of fibrinolytic therapy, so it is contraindicated in all situations where the risk of bleeding is increased - recent trauma, surgery, biopsies, stroke, peptic ulcer, aneurysms, bleeding disorders, diabetes, acute pancreatitis etc.)', 'role': 'assistant'}]