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
Bone sounding done in modern times is performed by which method? 
Select and explain. 
A. RVG, B. Probing, C. CBCT, D. Radiovisiography
C: CBCT
Answer: C: CBCT 
Explanation: None