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
Gingival fiber group which inserts in two adjacent teeth 
Select and explain. 
A. Horizontal, B. Circular, C. Transeptal, D. Oblique
C: Transeptal
Answer: C: Transeptal 
Explanation: None