This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thoracic Duct & Esophagus, Subject name: Anatomy
[{'content': 'Blood supply of thoracic part of esophagus - \nSelect and explain. \nA. Aorta, B. Inferior thyroidartery, C. Gastric artery, D. Superior thyroid artery', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Aorta Part of esophagusBlood supplyCervicalInferior thyroid arteryThoracicEsophageal branches of aortaAbdominalLeft gastric artery", 'role': 'assistant'}]