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
Dimercaprol is/are used in poisoning with: 
Select and explain. 
A. Pb, B. Hg, C. As, D. All
D: All
Answer: D: All 
Explanation: A i.e. Pb; B i.e. Hg; C i.e. As