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': 'Definitive information regarding the bone architecture is obtained by \nSelect and explain. \nA. Periodontal probing, B. Radiographic examination, C. Combination of probing & radiographs, D. Surgical exposure of the osseous defect', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]