This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Back and Thorax, Subject name: Anatomy
[{'content': 'All of the following are characteristic of a bronchopulmonary segment EXCEPT: \nSelect and explain. \nA. It is surgically resectable, B. It is named according to the segmental bronchus supplying it, C. It is drained by independent intrasegmental branch of pulmonary vein, D. It is the largest subdivision of a lobe', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The branches of pulmonary veins are intersegmental (not intra) and lie at the margins of bronchopulmonary segments and drain adjacent segments. Each segment drains into more than one vein and each vein drain more than one segment.', 'role': 'assistant'}]