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: Surgery
Blurred and narrow IAN canal seen in radiograph suggests: 
Select and explain. 
A. Canal passing between 2 roots, B. Roots perforated by canal, C. Canal superimposed, D. None of the above
A: Canal passing between 2 roots
Answer: A: Canal passing between 2 roots 
Explanation: None