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
Craig's cyst is: 
Select and explain. 
A. Paradental cyst., B. Buccal bifurcation cyst., C. Collateral cyst., D. All of the above.
D: All of the above.
Answer: D: All of the above. 
Explanation: Paradental cyst is associated with vital tooth and mandibular 3rd molar, recurrent pericoronitis.