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
Di collar is seen in: 
Select and explain. 
A. Fire arm entry wound, B. Fire arm exit wound, C. Both of the above, D. None of the above
A: Fire arm entry wound
Answer: A: Fire arm entry wound 
Explanation: Fire arm entry wound