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
Which of the following bullets leaves a visible mark in path so that a person can see it: 
Select and explain. 
A. Tandem Bullet, B. Tracer Bullet, C. Dum Dum Bullet, D. Incendiary bullet
B: Tracer Bullet
Answer: B: Tracer Bullet 
Explanation: B i.e. Tracer Bullet