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: Surgery
Which of the following is an epiphyseal lesion? 
Select and explain. 
A. Chondroblastoma, B. Chondrosarcoma, C. Fibrosarcoma, D. Non ossifying fibroma
A: Chondroblastoma
Answer: A: Chondroblastoma 
Explanation: Ans. is 'a' i.e., Chondroblastoma