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: Radiology
Which of the following help in distinguishing an osseous neoplasm and a cyst on an X-ray 
Select and explain. 
A. Size, B. Shape, C. Location, D. Peripheral bone formation
D: Peripheral bone formation
Answer: D: Peripheral bone formation 
Explanation: None