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: ENT
[{'content': 'Carcinoma tongue most frequently develops from: \nSelect and explain. \nA. Tip, B. Lateral border, C. Dorsal poion, D. All poions equally', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Most common site of carcinoma tongue is middle of lateral border or the ventral aspect of the tongue followed by tip and dorsum.', 'role': 'assistant'}]