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': 'Which of the following physical signs is seen in a patient with severe aortic stenosis \nSelect and explain. \nA. Opening snap, B. Diastolic rumble, C. Holosystolic murmur, D. Delayed peak of systolic murmur', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]