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
"Indifferent fibres" are 
Select and explain. 
A. Elastic fibres, B. Oxytalan fibres, C. Collagen fibres, D. None of the above
C: Collagen fibres
Answer: C: Collagen fibres 
Explanation: None