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': 'Which of the following statement of Hard palate tumor is true? \nSelect and explain. \nA. Smoking is not a risk factor, B. MC tumor is adenocarcinoma, C. Bilateral lymphatic spread, D. Painful ulcers', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Most commonly its SCC. Patient presents with painless ulcers.', 'role': 'assistant'}]