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
In Bonwill's equilateral triangle the apex of triangle is located at 
Select and explain. 
A. The anterior part of incisive papilla, B. At the prominent part of chin upper central, C. At the anteriormost part of incisor, D. At the anteriormost part of lower central incisor
D: At the anteriormost part of lower central incisor
Answer: D: At the anteriormost part of lower central incisor 
Explanation: None