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
Which of the following bone tumors produce that characteristically responds to aspirin? 
Select and explain. 
A. Osteoma, B. Osteoid osteoma, C. Osteoblastoma, D. Osteoclastoma
B: Osteoid osteoma
Answer: B: Osteoid osteoma 
Explanation: Pain in osteoid osteoma is due to PGE2 production it produces characteristic nocturnal pain and that responds to aspirin.