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
Gettler test is for 
Select and explain. 
A. Drowning, B. Hanging, C. Arsenic poisioning, D. Strangulation
A: Drowning
Answer: A: Drowning 
Explanation: A i.e. Drowning