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: Radiology
Disk perforation is best examined by: 
Select and explain. 
A. MRI, B. Arthrography, C. CT scan, D. Arthroscopy
B: Arthrography
Answer: B: Arthrography 
Explanation: Disk perforation and capsular tears are better detected with arthrography.
Textbook of oral medicine, oral diagnosis and oral radiology, Ravikiran Ongole, pg-314