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
Best technique to locate an impacted maxillary canine? 
Select and explain. 
A. Occlusal radiograph, B. Periapical radiograph with tube shift technique, C. CBCT, D. OPG
C: CBCT
Answer: C: CBCT 
Explanation: None