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
The three Landmarks which determine skeletal convexity
are: 
Select and explain. 
A. Glabella, prosthion and supramentale, B. Nasion, sella and articulare, C. Nasion, subspinale and pogonion, D. Orbitale, anterior nasal spine and pogonion
C: Nasion, subspinale and pogonion
Answer: C: Nasion, subspinale and pogonion 
Explanation: None