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
Plumbism is caused by. 
Select and explain. 
A. Lead poisoning, B. Mercury poisoning, C. Thallium poisoning, D. Copper poisoning
A: Lead poisoning
Answer: A: Lead poisoning 
Explanation: A i.e. Lead