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
Dermal Nitrate test is done for the detection of- 
Select and explain. 
A. Gunpowder residue, B. Seminal stains, C. Blood stains, D. Saliva
A: Gunpowder residue
Answer: A: Gunpowder residue 
Explanation: None