This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
[{'content': 'Anacrotic pulse in seen in which of the following condition \nSelect and explain. \nA. Aoic regurgitation, B. Mitral regurgitation, C. Mitral stenosis, D. Aoic stenosis', 'role': 'user'}, {'content': "Answer: D \nExplanation: A weak and delayed pulse ( pulsus parvus et tardus ) defines severe aoic stenosis (AS). Some patients with AS may also have a slow, notched, or interrupted upstroke (anacrotic pulse) with a thrill or shudder. With chronic severe AR, by contrast, the carotid upstroke has a sharp rise and rapid fall-off (Corrigan's or waterhammer pulse). ref : Harrison&;s principle of internal medicine,20th editionpg no.1553", 'role': 'assistant'}]