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
Extensive abrasions are found on the body of a pedestrian. The cause is: AI 09 
Select and explain. 
A. Primary impact injury, B. Secondary impact injury, C. Secondary injury, D. Postmoem aifact
C: Secondary injury
Answer: C: Secondary injury 
Explanation: Ans. Secondary injury