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
Hatter's shakes are seen in: AIIMS 09; AP 10 
Select and explain. 
A. Lead poisoning, B. Mercury poisoning, C. Arsenic poisoning, D. Copper poisoning
B: Mercury poisoning
Answer: B: Mercury poisoning 
Explanation: Ans. Mercury poisoning