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
Adamantinoma is 
Select and explain. 
A. A tumour from embryonal cells of developing teeth, B. also known as Ameloblastoma, C. is a complication of dentigerous cyst, D. all of these
D: all of these
Answer: D: all of these 
Explanation: None