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: Dental
[{'content': 'Posterior palatal seal is present on \nSelect and explain. \nA. Hard palate, B. Rugae area, C. Moveable soft palate, D. Immovable soft palate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]