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
Specific plaque hypothesis was put forward by: 
Select and explain. 
A. Jenco, B. Listgarten, C. Loesche, D. None of the above
C: Loesche
Answer: C: Loesche 
Explanation: None