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: Pathology
[{'content': 'MC site for Leukoplakia with high risk of oral cancer is \nSelect and explain. \nA. Buccal mucosa, B. Commisures, C. Floor of the mouth, D. Any of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]