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: Pathology
The condition highlighted by the arrow in the occlusal radiograph in a 8 year old child could be due to: 
Select and explain. 
A. Non-vital tooth, B. Impacted tooth, C. Ghost tooth, D. Mesiodens
D: Mesiodens
Answer: D: Mesiodens 
Explanation: None