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
All of the following measure the plaque index except: 
Select and explain. 
A. Ramjford index, B. Moller's index, C. OHI-S index, D. Loe and Silness
B: Moller's index
Answer: B: Moller's index 
Explanation: None