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': 'The primary stress bearing area of maxillary complete denture is \nSelect and explain. \nA. Alveolar ridge, B. Buccal flange, C. Palate, D. Posterior palatal seal area', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]