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
Gustafson's method is most useful for: AP 07 
Select and explain. 
A. 16 years, B. 18 years, C. 21 years, D. > 25 years
D: > 25 years
Answer: D: > 25 years 
Explanation: Ans. > 25 years