This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous System, Subject name: Pathology
Cystic supratentorial tumor is? 
Select and explain. 
A. Craniopharyngioma, B. Ependymoma, C. Medulloblastoma, D. None of the above
A: Craniopharyngioma
Answer: A: Craniopharyngioma 
Explanation: Ans. is 'a' i.e. Craniopharyngioma * Craniopharyngioma is supratentorial slow growing cystic tumor.Other options* Ependymoma can both supra and infratentorial.* Medulloblastoma is an infratentorial tumor.