This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
Which of the following is used for wound infection grading system? 
Select and explain. 
A. ASA classification, B. Glassgow scale, C. Southampton grading, D. APGAR score
C: Southampton grading
Answer: C: Southampton grading 
Explanation: Ans. (c) Southampton Grading(Ref: Bailey and Love 26th edition Page 54)* There are scoring systems for the severity of wound infection, which are particularly useful in surveillance and research.* Examples are the Southampton and ASEPSIS systems.