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
In root fracture 4 angled radiograph are taken at: 
Select and explain. 
A. 110 degree, B. 90 degree, C. 45 degree, D. All of the above.
D: All of the above.
Answer: D: All of the above. 
Explanation: other than these 3, 1more is taken that is occlusal film.