This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forensic Toxicology - Concepts, Statutes, Evidence, and Techniques, Subject name: Forensic Medicine
The metal responsible for this disease is: 
Select and explain. 
A. Mercury, B. Lead, C. Arsenic, D. Copper
A: Mercury
Answer: A: Mercury 
Explanation: Ans. (A). MercuryAcrodynia (pink disease, erythroedema, or swift- feer's disease)Due to idiosyncratic reaction to mercury among childrenMaculopapular rash (fingertips, toes)Pus-filled skin eruptionsSwollen and painful extremities