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: Anatomy
[{'content': 'Which among the following is the last tributary of the azygos vein? \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: Azygos vein receives venous drainage from the right bronchial vein near its termination. Tributaries of the azygos vein include: The right superior intercostal vein (a single vessel formed by the second, third, and fouh intercostal veins)Fifth to eleventh right posterior intercostal veinsThe hemiazygos veinThe accessory hemiazygos veinEsophageal veinsMediastinal veinsPericardial veinsRight bronchial veinsRef: Gray's Basic Anatomy By Richard Drake, A. Wayne Vogl, Adam W. M. Mitchell, 2012, Page 127.", 'role': 'assistant'}]