This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oesophagus, Subject name: Surgery
[{'content': 'Most common site of Squamous cell carcinoma of the esophagus:- \nSelect and explain. \nA. Upper 1/3rd, B. Middle 1/3rd, C. Lower 1/3rd, D. Cardia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Middle l/3rdRef: Bailey and Love 26thEdition, Page 1004* Most common site of SCC: Middle third* Most common site of adenocarcinoma: Lower third', 'role': 'assistant'}]