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
Cod fish vertebrae seen in 
Select and explain. 
A. Osteomalacia, B. Osteoporosis, C. Hyperparathyroidism, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Cod fish vertebrae

Osteomalaria
Osteoporosis
Hyperparathyroidism.