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': "Sudden cardiac death may occur in all of the following except \nSelect and explain. \nA. Dilated cardiomyopathy, B. Hyperophic cardiomyopathy, C. Eisenmenger's syndrome, D. Ventricular septal defect", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Sudden cardiac death (SCD) is defined as natural death due to cardiac causes in a person who may or may not have previously recognized hea disease but in whom the time and mode of death are unexpected. Ref Davidson edition23rd pg 436', 'role': 'assistant'}]