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: Anatomy
True about osteoporosis- 
Select and explain. 
A. Low calcium, B. Low phosphate, C. Cod fish veebrate, D. Raised alkaline phosphatase
C: Cod fish veebrate
Answer: C: Cod fish veebrate 
Explanation: *Serum calcium, phosphate and alkaline phosphatase are normal in osteoporosis. *Cod fish appearance of veebrae is seen in X-ray. Ref: Appley's 6th/e p.133