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
For class II die 1 malocclusion of 14 years old boy, which analysis is indicated to detect the tooth extraction 
Select and explain. 
A. Bolton's analysis, B. Pont's analysis, C. Peck & peck analysis, D. Ashley & Howe's analysis
D: Ashley & Howe's analysis
Answer: D: Ashley & Howe's analysis 
Explanation: None