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
what is the most likely diagnosis of a 55yrold female complaining of back ache 
Select and explain. 
A. Osteoporosis, B. Hurler's Syndrome, C. Paget's disease, D. Renal osteodystrophy
A: Osteoporosis
Answer: A: Osteoporosis 
Explanation: ref : maheswari 7th ed