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
An anatomic structure which has a worm-hole radiolucency is characteristic of 
Select and explain. 
A. Maxillary sinus, B. Mandibular canal, C. Nutrient canal, D. Mental foramen
C: Nutrient canal
Answer: C: Nutrient canal 
Explanation: None