This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'Water hammer pulse is seen in \nSelect and explain. \nA. Mitral stenosis, B. Aortic stenosis, C. Aortic incompetence, D. Myocardial infarction', 'role': 'user'}, {'content': "Answer: C \nExplanation: (C) Aortic incompetence # Water Hammer Pulse or Corrigan Pulse is seen in : Physiological - Exercise, Emotion, Pregnancy, Alcohol Hyperkinetic circulatory states: Anaemia, Thyrotoxicosis, Paget's disease of bone, Beriberi anoxic Corpulmonale. Leak in Atrial side of Circulation: AR, PDA, AV fistula, Large VSD Complete Heart Block", 'role': 'assistant'}]