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': 'Ventricular hypertrophy means - \nSelect and explain. \nA. Systolic dysfunction, B. Diastolic dysfunction, C. Asystole, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]