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 most common complication of an aoic aneurysm size 8 cm is - \nSelect and explain. \nA. Rupture, B. Intramural thrombosis, C. Embolism, D. Calcification', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Rupture", 'role': 'assistant'}]