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
Elaunin fibres are found in 
Select and explain. 
A. Gingiva, B. Cementum, C. Alveolar bone, D. Periodontal ligament
D: Periodontal ligament
Answer: D: Periodontal ligament 
Explanation: None