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
A body brought for autopsy with history of poisoning. On postmortem examination there is dark brown postmortem staining and garlic odour in stomach. In this case the poisoning is most likely due to - 
Select and explain. 
A. Hydrocyanic acid, B. Carbon dioxide, C. Aniline dye, D. Phosphorus
D: Phosphorus
Answer: D: Phosphorus 
Explanation: The information in question are :-


Dark brown postmortem staining.
Garlic odor.

	Both are seen in phosphorus poisoning.