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
Bilateral balanced occlusion is based on the concept given by 
Select and explain. 
A. Von Spee and Monson, B. G.V. Black, C. Sturdevant, D. Irian
A: Von Spee and Monson
Answer: A: Von Spee and Monson 
Explanation: None