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
Necrotizing Ulcerative Gingivitis has been demonstrated to be 
Select and explain. 
A. Communicable but not transmissible, B. Both communicable and transmissible, C. Transmissible but not communicable, D. Neither transmissible nor communicable
C: Transmissible but not communicable
Answer: C: Transmissible but not communicable 
Explanation: None