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: Forensic Medicine
Hanging is established by : 
Select and explain. 
A. Fracture of hyoid cailage, B. Fracture of thyroid cailage, C. Staining of saliva, D. All
C: Staining of saliva
Answer: C: Staining of saliva 
Explanation: C i.e. Staining of saliva