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
Smokeless gunpowder is composed of: Delhi 05, 07 
Select and explain. 
A. KMnO4, B. HCN, C. Nitrocellulose, D. Sulfur
C: Nitrocellulose
Answer: C: Nitrocellulose 
Explanation: Ans. Nitrocellulose