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: Dental
Ideal age for the use of Detain facemask in the treatment of skeletal maxillary deficiency cases is in the: 
Select and explain. 
A. 6 - 8 year old age group, B. 8 to 10 year old age group, C. 10 to 12 year old age group, D. 12 to 14 year old age group
A: 6 - 8 year old age group
Answer: A: 6 - 8 year old age group 
Explanation: None