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
Three dimensional classification of occlusion was given by: 
Select and explain. 
A. Angle, B. Simon, C. Dewey, D. Baume
B: Simon
Answer: B: Simon 
Explanation: In Simon’s classification, the dental arches are related to three anthropologic planes. Since malocclusion is a three-dimensional problem, Simon devised this method of classification orienting the dental arch to three different planes. It is a craniometric form of classification.