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
"Rossette" shaped arrangement of cells are seen in one of the following conditions: 
Select and explain. 
A. Thecoma ovary, B. Ependymoma, C. Neurofibroma, D. Lymphoma
B: Ependymoma
Answer: B: Ependymoma 
Explanation: Ependymoma