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
Stack formula is for age estimation from dental pattern in: 
Select and explain. 
A. Infants, B. Adults, C. 25-50 years age group, D. Above 50
A: Infants
Answer: A: Infants 
Explanation: A i.e. Infants