This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'Mill Wheel Murmur heard in case of \nSelect and explain. \nA. Air embolism, B. Aoic dissection, C. Coarctation of aoa, D. Abdominal aoic aneurysm', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Mill WHEEL murmur: constant machine like sound, late sign, heard over precordium heard in cases of air embolism.', 'role': 'assistant'}]