This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Orthopaedics
Most commonly involved bone in Paget's disease 
Select and explain. 
A. Skull, B. Femur, C. Pelvis, D. Veebrae
C: Pelvis
Answer: C: Pelvis 
Explanation: The pelvis and tibia being the commonest sites, and femur, skull, spine (veebrae) and clavicle the next commonest.(Refer: Mohindra's Fundamentals of Ohopedics, 2nd edition, pg no. 325, 410)