This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax- wall and Bronchopulmonary segment, Subject name: Anatomy
[{'content': 'The last tributary of the azygos vein is: \nSelect and explain. \nA. Right superior intercostal vein, B. Hemi-azygos vein, C. Right bronchial vein, D. Accessory azygos vein', 'role': 'user'}, {'content': 'Answer: C \nExplanation: All of the above are the tributaries of Azygos vein. Right bronchial vein opens into the Azygos vein near its termination into SVC. Fig:- Venous drainage', 'role': 'assistant'}]