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 change in color, shape and texture of gingiva are seen in? 
Select and explain. 
A. stage 1 gingivitis, B. stage 2 gingivitis, C. stage 3 gingivitis, D. stage 4 gingivitis
C: stage 3 gingivitis
Answer: C: stage 3 gingivitis 
Explanation: None