This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Forensic Medicine
Poisoning caused by bullet retained in body is; 
Select and explain. 
A. Lead, B. Phosphorus, C. Nitro cellulose, D. Iron
A: Lead
Answer: A: Lead 
Explanation: Lead poisoning may occur due to absorption of lead from lead bullets remaining in body. Synol fluid is capable of dissolving lead