This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolic Bone Disease, Subject name: Orthopaedics
Sclerosis of bone is seen in all except: 
Select and explain. 
A. Flurosis, B. Osteopetrosis, C. Secondaries from prostate, D. Hyperparathyroidism
D: Hyperparathyroidism
Answer: D: Hyperparathyroidism 
Explanation: Ans: d (Hyperparathyroidism)Ref: Apley's, 8th ed, p. 125, 147-148, 194, 123