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: Forensic Medicine
For a girl of 18 years, site for X-ray to determine her age is: PGI 07 
Select and explain. 
A. Elbow, B. Wrist, C. Knee, D. Ankle Joint
B: Wrist
Answer: B: Wrist 
Explanation: Ans. Wrist