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
Cyst found in place of tooth: 
Select and explain. 
A. Dentigerous cyst, B. Primordial cyst, C. Eruption cyst., D. All of the above.
B: Primordial cyst
Answer: B: Primordial cyst 
Explanation: None