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: Gynaecology & Obstetrics
Best Age to sta bone mineral density test in female. 
Select and explain. 
A. After 50 years, B. After 55 years, C. After 60 years, D. After 65 years
D: After 65 years
Answer: D: After 65 years 
Explanation: Ans.d.After 65 yearsNOF recommends:Bone density test :In woman age 65 or older.In man age 70 or older.