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
Raindrop pigmentation is seen in: Kerala 07; BHU 10; NEET 13 
Select and explain. 
A. Arsenic poisoning, B. Phosphorous poisoning, C. Mercury poisoning, D. Thallium poisoning
A: Arsenic poisoning
Answer: A: Arsenic poisoning 
Explanation: Ans. Arsenic poisoning