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: Surgery
[{'content': 'Commonest site of carcinoma tongue is - \nSelect and explain. \nA. Dorsum, B. Ventral aspects, C. Anterior 2/3 lateral aspect, D. Tip', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]