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
The main disadvantage of Florida probe system is 
Select and explain. 
A. Inconsistent probing force, B. Does not measure extent of plaque, C. Non reproducibility, D. Lack of tactile sensitivity
D: Lack of tactile sensitivity
Answer: D: Lack of tactile sensitivity 
Explanation: None