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': 'Venous drainage of esophagus is into the: \nSelect and explain. \nA. Azygous and inferior thyroid veins, B. Azygous, inferior thyroid and left gastric veins, C. Azygous, inferior thyroid and right gastric veins, D. Superior thyroid, inferior thyroid veins, azygous and hemi-azygous veins', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b. Azygous, inferior thyroid and left gastric veins', 'role': 'assistant'}]