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: Medicine
[{'content': 'In hemophilia B what is most common cause of death - \nSelect and explain. \nA. Hemorrhage, B. HIV, HBV, HCV due to transfusions, C. Transfusion reaction, D. Deep vein thrombosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. HemorrhageMost common cause of death in hemophilia b Hemonhage,Infectious complications arc also an impoant cause of death', 'role': 'assistant'}]