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: Pathology
Miller put forth the acidogenic theory of dental caries in the year 
Select and explain. 
A. 1890, B. 1920, C. 1924, D. 1980
A: 1890
Answer: A: 1890 
Explanation: None