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
Corpoporphyrin in urine is seen in which of the poisoning? 
Select and explain. 
A. Copper, B. Lead, C. Arsenic, D. Mercury
B: Lead
Answer: B: Lead 
Explanation: Ans. (b) LeadRef Parikh 6/e, p 9.22