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: Orthopaedics
Hypervitaminosis of which of the following will cause bony abnormalities -a) Vit. Ab) Vit. Dc) Vit. Cd) Vit. Ee) Vit. K 
Select and explain. 
A. ac, B. a, C. ab, D. bc
C: ab
Answer: C: ab 
Explanation: Hypervitaminosis 'A' and `D' can cause metabolic bone disease :-


Hypervitaminosis 'A' →  Bony tenderness and bony swelling.
Hypervitaminosis ‘D’ → Excessive bone resorption.