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 length of junctional epithelium is: 
Select and explain. 
A. 0.25 - 1.35 mm, B. 0.5 - .75 mm, C. 1.0 - 2.0 mm, D. 1.0 - 1.5 mm
A: 0.25 - 1.35 mm
Answer: A: 0.25 - 1.35 mm 
Explanation: None