This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
[{'content': 'Choose the appropriate lettered site or structure in this CT scan of the thorax. Becomes hypertrophied as result of the pulmonary stenosis? \nSelect and explain. \nA. A, B. B, C. C, D. D', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (c) Pulmonary stenosis results in right ventricular hypertrophy', 'role': 'assistant'}]