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
Arun was hit by a car and thrown up. He hits the road divider and falls on the ground and sustains head injury then run over by another car. The head injury is classified as: JIPMER 14 
Select and explain. 
A. Primary, B. Primary impact, C. Secondary, D. Secondary impact injury
C: Secondary
Answer: C: Secondary 
Explanation: Ans. Secondary