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
Gunpowder on clothing can be visualized by: AI 11 
Select and explain. 
A. Magnifying lens, B. UV rays, C. Infrared rays, D. Energy dispersive X-ray
D: Energy dispersive X-ray
Answer: D: Energy dispersive X-ray 
Explanation: Ans. Energy dispersive X-ray