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
Dead bone in X-ray is? 
Select and explain. 
A. More radiolucent, B. More radiopaque, C. Same as normal bone, D. Variable
B: More radiopaque
Answer: B: More radiopaque 
Explanation: Dead bone as seen in Avascular necrosis, Perthes disease, TB, osteomyelitis is usually more opaque than normal in X-ray.