This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2019, Subject name: Surgery
Which of the following scoring system is used for wound infection? 
Select and explain. 
A. ASA score, B. SIRS score, C. Southampton score, D. Glasgow score
C: Southampton score
Answer: C: Southampton score 
Explanation: Southampton Wound Grading System Grade/Appearance Subtype/Appearance 0: Normal healing I: Normal healing with mild bruising or erythema la: some bruising lb: Considerable bruising Ic: Mild erythema II: Erythema plus other signs of inflammation IIa: At one point IIb: Around sutures IIc: Along wound IId: Around wound III: Clear or hemoserous discharge IIIa: At one point only (<2 cm) IIIb: Along wound (>2 cm IIIc: Large volume IIId: Prolonged (>3 days) IV: Pus IVa: At one point only (<2 cm) IVb: Along wound (>2 cm)