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
Definitive information regarding the bone architecture is obtained by 
Select and explain. 
A. Periodontal probing, B. Radiographic examination, C. Combination of probing & radiographs, D. Surgical exposure of the osseous defect
D: Surgical exposure of the osseous defect
Answer: D: Surgical exposure of the osseous defect 
Explanation: None