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
The conclusion post mortem finding of death by drowning - 
Select and explain. 
A. Cutis anserine, B. Presence of water in the middle ear, C. Edematous lungs, D. Demonstration of diatoms in the organs of the body
D: Demonstration of diatoms in the organs of the body
Answer: D: Demonstration of diatoms in the organs of the body 
Explanation: None