This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Anatomy
The bullet which leave a color in its path is called 
Select and explain. 
A. Piggy tail bullet, B. Tracer bullet, C. Incendiary bullet, D. Tandem bullet
B: Tracer bullet
Answer: B: Tracer bullet 
Explanation: Tracer bullets are bullets which leave a color in their path. These bullets contain barium nitrate, magnesium, strontium nitrate, etc Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 141