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
Total-etch concept was put forth by 
Select and explain. 
A. Nakabayhashi, B. Buonocore, C. Bowen, D. Fusayama
D: Fusayama
Answer: D: Fusayama 
Explanation: None